Portal:Japan/Anniversaries/April
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These are the selected anniversaries for April that appear on the Japan portal. The "edit" links edit the portal subpages that are displayed as sections here.
April 1
- 1867 - Japan participates in its first world expo, the Paris World Expo. (Traditional Japanese Date: Twenty-seventh Day of the Second Month, 1867)
- 1880 - The Mitsubishi Foreign Exchange, the precursor to the Bank of Mitsubishi, is established.
- 1889 - Fukuoka City is established. The population at the time was a mere 50,847 people. The following year a proposal to change the name to Hakata City failed to pass by only one vote.
- 1914 - The Takarazuka Revue perform for the first time.
- 1929 - The Kotobukiya company, the predecessor to Suntory, begins selling the first whisky distilled in Japan.
- 1930 - Japan's first underground shopping center is opened in Ueno.
- 1940 - Income tax withholding begins.
- 1947 - The 6-3 system of education (6 years of compulsory grade school followed by 3 years of compulsory junior high school) is implemented. The goal of the new system was to achieve equality of education for all. A high school system was implemented the following year and a university system was implemented in 1949.
- 1957 - A law against prostitution is implemented.
- 1964 - Restrictions on overseas tourism are lifted.
- 1964 - The Wide Show, an hour-long morning television pogram aimed at housewives that features news and information on homemaking, cooking, health and education, airs for the first time.
- 1982 - The government begins minting 500 yen coins.
- 1985 - NTT and Japan Tobacco are established.
- 1987 - Japanese National Railways is split up and privatized.
- 1989 - Japan's first consumption tax is implemented. The tax started at 3% and was raised to 5% in 1997.
- 1989 - Sendai becomes the eleventh city designated by government ordinance.
- 1991 - Participation in the national pension scheme becomes compulsory for everyone between the ages of 20 and 60.
- 2001 - An electronic consumer goods recycling law is implemented.
Edit April 1 anniversaries ‧ April 1 anniversaries on English Wikipedia ‧ April 1 anniversaries on Japanese Wikipedia
April 2
- 1332 - Emperor Godaigo is exiled to Oki Island. (Traditional Japanese Date: Seventh Day of the Third Month, 1332)
- 1908 - Kitasato Shibasaburō and Shiga Kiyoshi form a Cancer Research Society.
- 1922 - Newspapers venture into the weekly magazine business with the launch of the Weekly Asahi and the Sunday Mainichi.
- 1932 - Construction of Ueno Station is completed.
- 1950 - Yoshikawa Eiji begins publishing his revision of The Tale of the Heike in the Weekly Asahi.
- 1951 - Five hundred yen paper bills make their first appearance featuring Iwakura Tomomi.
- 1954 - Famed Austrian conductor Herbert Von Karajan comes to Japan.
- 1993 - The Fukuoka Dome, Japan's first stadium with an open and close roof, opens. It was built at a cost of 76 billion yen and was the home of the Daiei Hawks (now the Fukuoka Softbank Hawks) professional baseball team.
Edit April 2 anniversaries ‧ April 2 anniversaries on English Wikipedia ‧ April 2 anniversaries on Japanese Wikipedia
April 3
- 700 - Buddhist monk Dōshō becomes the first person in Japanese history to be cremated. (Traditional Japanese Date: Tenth Day of the Third Month, 700)
- 1582 - Oda Nobunaga defeats Takeda Katsunori, eliminating the Takeda hereditary line. (Traditional Japanese Date: Eleventh Day of the Third Month, 1582)
- 1687 - The Edo Shogunate establishes a registration system for pet dogs. (Traditional Japanese Date: Twenty-first Day of the Second Month, 1687)
- 1825 - A law is passed mandating that foreign ships be driven away and not allowed to land. (Traditional Japanese Date: Fifteenth Day of the Second Month, 1825)
- 1888 - The Magazine Nihonjin is first published.
- 1895 - Japan's first tree planting ceremony is held.
- 1911 - The modern day Nihonbashi is opened. The famed Tokyo bridge is rebuilt as a stone arch designed to evoke the European rennaisance style.
- 1919 - Yamamoto Sanehiko establishes the socialist Kaizō Magazine (Reform Magazine), which was published until 1955. Shiga Naoya's A Dark Night's Passing (暗夜行路 Anya Kōro?) and Ryūnosuke Akutagawa's Kappa (河童?) were both born in the literary section of Kaizō.
- 1928 - Followers of the religion Tenrikyō are suppressed when the religion is found to be in violation of the law against irreverence against the emperor.
- 1930 - The first automatic train ticket dispensers appear in Tokyo and Ueno stations.
- 1947 - The first Japanese nightingales (young women chosen to be announcers because of their beautiful voices) make their appearance at the Kōrakuen Stadium.
- 1971 - The first broadcast of the science fiction TV hit Kamen Rider appears on TV Asahi.
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April 4
- 1879 - The Ryūkyū Clan is abolished and Okinawa is born.
- 1890 - Patrick Lafcadio Hearn, known in Japan as Koizumi Yakumo after gaining Japanese citizenship, first arrives in Japan.
- 1899 - The Tokyo University of Foreign Studies is founded.
- 1905 - The Waseda Baseball Club travels abroad for the first time.
- 1978 - The female singing trio known as Candies play their final concert at the Kōrakuen Stadium.
- 1983 - NHK's morning drama Oshin debuts, eventually pulling in ratings as high as 65%.
Edit April 4 anniversaries ‧ April 4 anniversaries on English Wikipedia ‧ April 4 anniversaries on Japanese Wikipedia
April 5
- 1868 - Saigo Takamori and Katsu Kaishū meet in Edo to discuss the surrender of Edo Castle to the emperor's forces. (Traditional Japanese Date: Thirteenth Day of the Third Month, 1868)
- 1872 - Construction is begun on a railway between Shinagawa and Yokohama. (Traditional Japanese Date: Twenty-eighth Day of the Second Month, 1872)
- 1939 - The motion picture law is passed.
- 1941 - The Japan Cancer Society]] is formed.
- 1947 - The first unified local elections are held.
- 1967 - Okayama University's Professor Kobayashi announces the cause of itai itai disease as cadmium poisoning. It is designated as the first public health illness.
- 1968 - Japan and the United States sign a treaty returning the Ogasawara islands to Japanese control.
- 1975 - The twin sister signing group The Peanuts retire from show business.
- 1982 - The Asakusa International Theater closes after 45 years of performances.
- 1998 - The Akashi-Kaikyō Bridge is completed joining the main island of Honshū with Awaji Island. The total length of the bridge is 3911 meters and the suspension towers reach a height of 300 meters -- nearly as tall as Tokyo Tower.
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April 6
- 1868 - The Five Charter Oath is signed by Emperor Meiji. (Traditional Japanese Date: Fourteenth Day of the Third Month, 1868)
- 1868 - Edo Castle is handed over the the emperor's forces in a bloodless coup, thanks to an agreement reached the previous day between Saigo Takamori and Katsu Kaishū. (Traditional Japanese Date: Fourteenth Day of the Third Month, 1868)
- 1882 - Itagaki Taisuke proclaims "Itagaki may perish, but liberty will survive" upon being shot (non-fatally) by a right-wing militant.
- 1956 - The Atomic Energy Council chooses Tōkaimura in Ibaraki Prefecture as the site of an atomic energy research facility.
- 1968 - Actress Miyagi Mariko opens a school for disabled children called Nemu no Ki in Shizuoka Prefecture.
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April 7
- 1884 - Yakuza boss Shimizu Jirochō is sentenced to seven years in prison for gambling.
- 1890 - The Lake Biwa Canal,from Ōtsu to Kamo River, is completed.
- 1945 - The Japanese battleship Yamato is sunk by U.S. forces while on its way to Okinawa.
- 1947 - The Labor Standards Law is passed. It is implemented on September 1.
- 1991 - The Inter-American Development Bank (IDB) holds its annual meeting in Nagoya, its first annual meeting to be held in Asia.
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April 8
- 1900 - The first sleeper cars appear on the former Sanyō Line between Kyoto and Mitajiri.
- 1922 - The Ministry of Education (Japan) establishes 2,000 regular use kanji (常用漢字 jōyō kanji?).
- 1940 - The National Fitness Law is passed, requiring regular checkups for males between the ages of 17 and 19.
- 1986 - Japanese idol singer Yukiko Okada leaps to her death at the age of 18.
Edit April 8 anniversaries ‧ April 8 anniversaries on English Wikipedia ‧ April 8 anniversaries on Japanese Wikipedia
April 9
- 702 - Japan's first legal system of measurement is implemented. (Traditional Japanese Date: Eighth Day of the Third Month, 702)
- 1890 - A ceremony is held for the opening of the first Lake Biwa Canal.
- 1935 - Three of Minobe Tatsukichi's publications setting forth his theory that the emperor is merely a legal figure who exercises power on behalf of the people in whom sovereignty resides (the imperial institution theory) are outlawed. Minobe eventually quits the House of Peers.
- 1939 - The first group recruitment train, carrying 580 students looking for work, travels from Akita to Ueno.
- 1952 - A Japan Airlines passenger plane crashes into Mt. Mihara on the Izu Peninsula, killing 37 people, including entertainer Ōtsuji Shirō.
- 1981 - An American nuclear submarine collides with a Japanese cargo ship, the Nisshōmaru.
- 1992 - Singer Fujiyama Ichirō becomes the ninth person to be awarded the National Honor Award (国民栄誉賞 Kokumin Eiyō-shō?).
Edit April 9 anniversaries ‧ April 9 anniversaries on English Wikipedia ‧ April 9 anniversaries on Japanese Wikipedia
April 10
- 823 - Nemoto Hall on Mount Hiei is renamed Enryaku-ji. (Traditional Japanese Date: Twenty-sixth Day of the Second Month, 823)
- 1657 - Tokugawa Mitsukuni establishes editorial institutions in Edo and Mito that begin compiling a comprehensive history of Japan that came to be known as the History of Great Japan (大日本史 Dainihonshi?). It wasn't completed until 1906. (Traditional Japanese Date: Twenty-seventh Day of the Second Month, 1657)
- 1928 - The Japan Chamber of Commerce and Industry (日本商工会議所 Nihon Shōkō Kaigisho?) is formed.
- 1946 - Japan's first post-war elections are held, and 39 women are elected.
- 1954 - Kinugasa Teinosuke's Gate of Hell wins the Cannes Film Festival Palme d'or grand prize.
- 1959 - Crown Prince Akihito (the current emperor) marries Shōda Michiko.
- 1988 - The world's longest dual-use bridge (automobile and train), the Seto Ōhashi, is completed joining Japan's main island of Honshū with the island of Shikoku.
Edit April 10 anniversaries ‧ April 10 anniversaries on English Wikipedia ‧ April 10 anniversaries on Japanese Wikipedia
April 11
- 800 - Mount Fuji erupts. (Traditional Japanese Date: Fourteenth Day of the Third Month, 800)
- 1951 - General Douglas MacArthur completes his duties and is dismissed as the Supreme Allied Commander.
Edit April 11 anniversaries ‧ April 11 anniversaries on English Wikipedia ‧ April 11 anniversaries on Japanese Wikipedia
April 12
- 1638 - The Shimabara Rebellion is put down. Christian farmers holed up in Shimabara Castle fall to an attack by Shogunate forces. (Traditional Japanese Date: Twenty-eighth Day of the Second Month, 1638)
- 1784 - The golden seal bestowed upon the king of Nakoku by the Chinese emperor Guāng Wǔ Dì is discovered on Shika Island in the Hakata Bay near modern day Fukuoka. (Traditional Japanese Date: Twenty-third Day of the Second Month, 1784)
- 1872 - Japan holds its first world expo at Yushima Hall. (Traditional Japanese Date: Fifth Day of the Third Month, 1872)
- 1877 - Tokyo University is founded.
- 1948 - The Japan Business Federation, or the Nikkeiren, is founded. The word "salaryman" was started by the Nikkeiren's long time Senior Director Maeda Hajime.
- 1968 - Japan's first modern high-rise, the 36 story 147 meter Kasumigaseki Building, is completed in Kasumigaseki, Tokyo.
Edit April 12 anniversaries ‧ April 12 anniversaries on English Wikipedia ‧ April 12 anniversaries on Japanese Wikipedia
April 13
- 1856 - The shogunate abolishes the practice of requiring suspected Christians to step on fumie at the newly opened ports. (Traditional Japanese Date: Ninth Day of the Third Month, 1856)
- 1888 - Japan's first coffee shop, the Kahi (coffee) Sakan, opens in Ueno.
- 1903 - The system of nationally approved primary school textbooks is implemented.
- 1922 - The Boy Scouts of Japan is formed.
- 1930 - The Japan Gymnastics Association is formed.
- 1941 - A Neutrality pact between Japan and the Soviet Union is signed in Moscow.
- 1986 - Hiroaki Nagae and family return to Japan four years and nine months after setting of an around-the-world yachting expedition.
Edit April 13 anniversaries ‧ April 13 anniversaries on English Wikipedia ‧ April 13 anniversaries on Japanese Wikipedia
April 14
- 1603 - Nihonbashi is completed and quickly becomes the center of Japanese commerce. (Traditional Japanese Date: Third Day of the Third Month, 1603)
- 1670 - The Hakone reservoir is completed. (Traditional Japanese Date: Twenty-fifth Day of the Second Month, 1670)
- 1879 - A Japanese pilots a steam train for the first time.
- 1947 - Japan's antimonopoly law is passed.
- 1989 - Nintendo announces its first Game Boy.
Edit April 14 anniversaries ‧ April 14 anniversaries on English Wikipedia ‧ April 14 anniversaries on Japanese Wikipedia
April 15
- 1870 - Japan's first shoe factory opens (Traditional Japanese Date: Fifteenth Day of the Third Month, 1870)
- 1929 - Japan's first train terminal shopping center, the Hankyu Department Store, opens at Umeda Station in Osaka.
- 1935 - Japan's begins radio broadcasts for schools.
- 1937 - Helen Keller visits Japan.
- 1967 - Minobe Tatsukichi is elected as Tokyo's first reform governor.
- 1983 - Tokyo Disneyland opens.
Edit April 15 anniversaries ‧ April 15 anniversaries on English Wikipedia ‧ April 15 anniversaries on Japanese Wikipedia
April 16
- 1205 - The New Collection of Ancient and Modern Waka is completed. (Traditional Japanese Date: Twenty-sixth Day of the Third Month, 1205)
- 1882 - Ōkuma Shigenobu forms the Progressive Party.
- 1906 - Japan initiates express train service with an express train from Shimbashi to Kobe. The trip took thirteen hours and 40 minutes.
- 1949 - Japan's first off-track betting facility opens in Kōrakuen, Tokyo.
- 1955 - The Mount Bota mine in Sasebo, Nagasaki collapses, killing 68.
- 1972 - Nobel Prize winning author Kawabata Yasunari commits suicide at his office in Zushi.
- 1978 - Japan holds its first women's marathon at Lake Tama Field. Forty-nine women participated and 100,000 spectators turned out to watch.
- 1991 - Mikhail Gorbachev makes his first visit to Japan as the leader of the Soviet Union.
Edit April 16 anniversaries ‧ April 16 anniversaries on English Wikipedia ‧ April 16 anniversaries on Japanese Wikipedia
April 17
- 667 - Prince Naka no Ōe moves the capital from Asuka to the Ōtsu Palace. (Traditional Japanese Date: Nineteenth Day of the Third Month, 667)
- 1870 - A licensing system for rickshaw's is implemented. (Traditional Japanese Date: Seventeenth Day of the Third Month, 1870)
- 1895 - The Treaty of Shimonoseki is signed, whereby China recognized Korea's independence and renounced all claims to it, ceded some territory, including Taiwan, to Japan, and agreed to pay reparations
- 1898 - Western-style artist Saeki Yūzō is born. Saeki travelled to France in 1923 and was heavily influenced by Maurice Utrillo. He is best known for his paintings of Paris. He died at the age of 31.
- 1947 - A public employment assistance office is opened.
- 1947 - The regional and local administrative law is passed, establishing the organization and operation of regional administrative regions and their relationship with the national government.
- 1968 - Tokyo governor Minobe officially recognizes the Korea University in Kodaira, Tokyo.
Edit April 17 anniversaries ‧ April 17 anniversaries on English Wikipedia ‧ April 17 anniversaries on Japanese Wikipedia
April 18
- 1872 - The first Christian church built by Japanese opens in Yokohama. (Traditional Japanese Date: Eleventh Day of the Third Month, 1872)
- 1934 - The Teijin bribery scandal occurs, which eventually leads to the resignation of Prime Minister Saitō Makoto and his entire cabinet.
- 1942 - The U.S. begins bombing raids over Tokyo, Nagoya, Kobe and other cities in Japan.
- 1943 - Japanese Fleet Admiral and Commander-in-Chief Yamamoto Isoroku is shot down and killed over the Solomon Islands.
- 1969 - Princess Nori is born.
Edit April 18 anniversaries ‧ April 18 anniversaries on English Wikipedia ‧ April 18 anniversaries on Japanese Wikipedia
April 19
- 1160 - Minamoto Yoritomo is banished to Izu. (Traditional Japanese Date: Eleventh Day of the Third Month, 1160)
- 1951 - Tanaka Shigeki becomes the first Japanese to run and win the Boston Marathon.
- 1961 - Edwin O. Reischauer is appointed as the U.S. ambassador to Japan.
- 1988 - NTT's ISDN service is initiated, linking Tokyo and Nagoya.
Edit April 19 anniversaries ‧ April 19 anniversaries on English Wikipedia ‧ April 19 anniversaries on Japanese Wikipedia
April 20
- 1284 - Hōjō Tokimune dies. (Traditional Japanese Date: Fourth Day of the Fourth Month, 1284)
- 1868 - The capital is moved from Kyoto to Edo, which is renamed Tokyo. (Traditional Japanese Date: Twenty-eighth Day of the Third Month, 1868)
- 1871 - Postal service begins in Tokyo, Kyoto and Osaka. (Traditional Japanese Date: First Day of the Third Month, 1871)
- 1901 - Japan's first women's university opens.
- 1925 - Airmail service begins between Tokyo, Osaka and Fukuoka.
- 1947 - Japan's first Diet elections are held.
- 1954 - The Haiyūza Theater opens in Roppongi.
Edit April 20 anniversaries ‧ April 20 anniversaries on English Wikipedia ‧ April 20 anniversaries on Japanese Wikipedia
April 21
- 1612 - Tokugawa Ieyasu issues a proclamation banning Christianity in the territories under its direct control. (Traditional Japanese Date: Twenty-first Day of the Third Month, 1612)
- 1701 - Leader of the Ako clan, Asano Naganori attempts to kill Kira Yoshinaka in the Hall of Pines at Edo Castle, triggering a series of events known as the tale of the Forty-seven Ronin. Asano committed seppuku the next day under the orders of Shogun Tokugawa Tsunayoshi. (Traditional Japanese Date: Fourteenth Day of the Third Month, 1701)
- 1934 - The statue of the faithful dog Hachikō is completed in front of Shibuya Station.
- 1951 - Temporary permits are issued to 16 commercial broadcasters.
- 1978 - The Japan-USSR Fisheries Agreement is signed.
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April 22
- 1870 - The Tokyo government issues a permit to rickshaw inventors Izumi Yosuke, Suzuki Tokujiro and Takayama Kosuke to build and sell them. (Japanese Date: Twenty-second Day of the Third Month, 1870)
- 1901 - Japanese braille is first published.
- 1925 - Peace Preservation Law of 1925 is publicly announced.
- 1946 - Japanese comic-strip Sazae-san is first published in the newspaper Fukunichi Shimbun.
- 1947 - The Tokyo Metropolitan Police Department begin testing the polygraph.
- 1950 - Fujiko Yamamoto wins the first The Miss Japan Grand Prix Pageant.
- 1981 - Mother Theresa visits Japan for the first time.
Edit April 22 anniversaries ‧ April 22 anniversaries on English Wikipedia ‧ April 22 anniversaries on Japanese Wikipedia
April 23
- 1869 - 明治天皇が天皇として初の伊勢神宮参拝を行う。 (Japanese Date: Twelfth Day of the Third Month, 1869)
- 1895 - 三国干渉
- 1895 - ｢遼東半島を清へ変換せよ」と、ロシア・独・仏が日本に要求する。（三国交渉）
- 1949 - ＧＨＱが１ドル３６０円の単一為替ルートを指示。４月25日から実施。
- 1955 - 第三回統一地方選挙で創価学会が進出。
- 1966 - 日産が新しい大衆車｢サニー｣を発売。車名は、８５０万通の一般公募から選ばれた。１０００ｃｃで４１万円。「サニー」発売を契機に、１１月にはトヨタが「カローラ」を発売し、一家に一台のマイカー時代が到来。
- 1974 - 迎賓館（東京・元赤坂）が改装され落成する。
Edit April 23 anniversaries ‧ April 23 anniversaries on English Wikipedia ‧ April 23 anniversaries on Japanese Wikipedia
April 24
- 1932 - 第一回日本ダービー（東京優駿大競走）開催、ワカタカが優勝。この日、第一回目の日本ダービーでは、４歳馬19頭が出走し、１番人気のワカタカが第一回の優勝馬に輝いた。前日からの雨で重馬場の中、ワカタカは、終始先頭を譲らず４馬身差をつけた圧勝だった。優勝賞金は、２万3530円を獲得した。
- 1940 - 生活必需品（米・味噌・塩・マッチなど）に切符制が採用される。
- 1951 - 国電桜木町事故 死者106名
- 1951 - 横浜・桜木町で電車火災事故、１０６人が死亡（桜木町事件）。
- 1965 - 小田実らの「ベトナムに平和を市民連合（ベ平連）」が初のデモ行進する。
- 1977 - 日劇ダンシングチーム最終公演を行う。
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April 25
- 1185 - 壇ノ浦の合戦で、平家が滅亡。 (Japanese Date: Twenty-fourth Day of the Third Month, 1185)
- 1644 - 大明帝国滅亡 (Japanese Date: Nineteenth Day of the Third Month, 1644)
- 1683 - 八百屋お七が火あぶりの刑となる。歌舞伎などの演目でも知られる八百屋の娘「お七」が放火の罪で鈴ケ森で火あぶりの極刑に処せられる。お七はその時18歳、お七が丙午生まれだったことから、丙午生まれの女子が疎まれるようになった (Japanese Date: Twenty-ninth Day of the Third Month, 1683)
- 1868 - 福沢諭吉が慶応義塾を開校。私塾を芝に移し、年号にちなみ慶應義塾と改称する。 (Japanese Date: Third Day of the Fourth Month, 1868)
- 1888 - 市町村制が公布される。
- 1926 - ドイツ製入場券自動販売機が登場
- 1934 - 吉本興業、東京・新橋演舞場で「特選漫才大会」を開く。
- 1980 - モスクワオリンピック不参加を政府が発表。
- 1980 - 大貫久男さん、東京・銀座で１億円入りの包みを拾う。東京・銀座の道路わきで、トラック運転手がふろしき包みを拾う。中は、１万円札で、１億円。警察に届け、一時は、「犯罪に関する金か！？」と騒がれるが、６ケ月と14日の届け出期間を過ぎても落とし主が現れず11月9日に時効成立。1億円は大貫さんへ。
- 1992 - ロック歌手、尾崎豊急死。泥酔した状態で東京都内の民家で保護されたが、肺水腫で死亡した。「十七歳の地図」で熱狂的な支持を得、若者のカリスマ的存在でもあった。
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April 26
- 1880 - 日本地震学会設立。
- 1887 - 明治天皇、初めて歌舞伎を観覧。
- 1897 - 国会図書館開館
- 1924 - 日本初のボクシング試合、東京・日比谷公園音楽堂で行われる。
- 1939 - 関門海底トンネル開通
- 1959 - 王貞治（巨人）プロ入り初ホームランを放つ。
- 1965 - 料金改定をめぐり「銭湯」がスト。料金改定を巡り、東京都の銭湯約２千６００軒がストに突入した。都民１５０万人が影響を受ける。申請料金は、大人３２円（当時は２３円）、中人が２５円（当時は１５円）小人が１５円（当時は８円）だった。都心部の銭湯は、無期限ストを強行しようとしたが、東京都側の歩み寄りでストは１日で中止された。
- 1977 - 革新自由連合発足。
- 1994 - 名古屋空港で中華航空が着陸に失敗し、墜落。２６４人が死亡。
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April 27
- 1897 - 帝国図書館（現在の国立国会図書館）が開館。
- 1917 - 京都・東京間で駅伝競走が行われる。日本初の駅伝競争が開催された。駅伝の名前は「東海道五十三次駅伝競争」。京都・三条大橋中央をスタートし、東京・上野までの５１２キロ。たすきを手渡しする日本独特のリレーが誕生した。昼も夜もぶっ通しで行われた。
- 1946 - 日本初の婦人警官勤務につく
- 1978 - 日大隊の５人が北極点に到達。
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April 28
- 1661 - 伊達堀(神田川)完成 (Japanese Date: Twenty-ninth Day of the Third Month, 1661)
- 1883 - 日本銀行開業。日本で唯一の銀行券を発行できる銀行＝日本銀行がこの日開業。
- 1908 - ブラジル移民が出発。日本人最初のブラジル移民７８０人が、神戸港からブラジルに向け出発した。1960年代の高度成長期に衰退するが、戦前・戦後を通じ、約２５万人が移住した。
- 1937 - 初の文化勲章の授与式が行われる（横山大観、幸田露伴ら）。
- 1948 - 夏時刻法が公布される（サマータイム・実施は５月２日から）。５月第1土曜日から、９月第２土曜日まで時計の針を1時間進める「夏時刻法」が公布されたが、睡眠不足になったなどクレームが相次ぎ1952年に廃止。
- 1952 - サンフランシスコ平和条約締結
- 1964 - 日本がＯＥＣＤ（経済開発協力機構）に正式に加盟する。
- 1964 - 初の男性向け雑誌「平凡パンチ」創刊。
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April 29
- 1600 - A Dutch ship carrying William Adams, the "Pilot of Miura" shipwrecks in Usuki Bay, Bungo Province (Traditional Japanese Date: Sixteenth Day of the Third Month, 1600)
- 1891 - 二宮忠八、ゴム動力の模型飛行機の飛行に成功する。
- 1901 - 昭和天皇、当時皇太子だった大正天皇の第1皇子・迪宮裕仁親王として出生
- 1912 - 北海道の夕張炭坑でガス爆発、276人が死亡。
- 1927 - 嵐勘寿郎主演の｢鞍馬天狗シリーズ｣の第1作となる「角兵衛獅子」が封切られる。
- 1949 - 日本五輪復帰をIOC承認
- 1977 - 山下泰裕、史上最年少（19才）で全日本柔道選手権に優勝。
- 1986 - 昭和天皇在位60年式典が行われる。法隆寺が全焼する。
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April 30
- 1898 - トラピスト修道院設立が函館・湯の川に設立される。日本初の女子修道院（カトリック）。
- 1918 - 東京女子大開校
- 1960 - ソニー世界最初のトランジスタテレビ発売
- 1960 - 東京・浅草寺の雷門が落成。江戸末期に消失したままだった。
- 1978 - 植村直己、犬ゾリでの史上初の単独北極点到達に成功（日本時間では５月１日）。エベレスト・モンブラン・キリマンジェロ・アコンカグア・マッキンリー、世界初の五大陸五大峰の完全制覇を遂げた冒険家の植村直己氏が、16匹のエスキモー犬と一緒に北極点到達を果たした。単独では世界初の快挙。
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