Abckiria
Abckiria (also sometimes spelled ABC-kiria, and spelled "ABC-kirja" in modern Finnish), in English "The ABC book", is the first book that was published in the Finnish language. It was written by Mikael Agricola, a bishop and Lutheran Reformer, and was first published in 1543. Agricola wrote the book while working on the first Finnish translation of the New Testament (which was eventually finished in 1548 as Se Wsi Testamenti).
Abckiria was a primer meant to teach the basics of reading and writing. It contains the alphabet, some spelling exercises, and catechism. The first edition had 16 pages. The second edition, which was written in 1551, had 24 pages. No complete copies of either are known to exist, but general contents of the book have been discerned from the existing material.
The catechism includes the Ten Commandments, the Apostles' Creed, the Lord's Prayer, the first part of the Hail Mary, New Testament citations for sacraments of baptism, confession, and the Sacrament of the Body and Blood of Christ. It also includes grace and the morning and evening prayers based on Luther's Small Catechism and three prayers during the ringing of the church bell, apparently as a substitute to the Angelus.
In modern days, the most famous part of the book is the opening poem:
Oppe nyt wanha / ia noori /
joilla ombi Sydhen toori.
Jumalan keskyt / ia mielen /
iotca taidhat Somen kielen.
Laki / se Sielun hirmutta /
mutt Cristus sen tas lodhutta.
Lue sijs hyue Lapsi teste /
Alcu oppi ilman este.
Nijte muista Elemes aina /
nin Jesus sinun Armons laina.
("Learn now, old and young, who have a fresh heart, God's commandments and the mind, so that you shall know the Finnish language. Law, it makes the soul fearful, but Christ soothes it again. So read from here good child, the beginning of learning without obstacles. Remember them all your life, so Jesus lends you his mercy.")