198 BC

Millennium:	1st millennium BC
Centuries:	3rd century BC – 2nd century BC – 1st century BC
Decades:	220s BC 210s BC 200s BC – 190s BC – 180s BC 170s BC 160s BC
Years:	201 BC 200 BC 199 BC – 198 BC – 197 BC 196 BC 195 BC

198 BC by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments

**198 BC in other calendars**
Gregorian calendar	198 BC
Ab urbe condita	556
Armenian calendar	N/A
Bahá'í calendar	-2041 – -2040
Bengali calendar	-790
Berber calendar	753
Buddhist calendar	347
Burmese calendar	-835
Byzantine calendar	5311 – 5312
Chinese calendar	[[Sexagenary cycle\|]]年 (2439/2499) — to — [[Sexagenary cycle\|]]年 (2440/2500)
Coptic calendar	-481 – -480
Ethiopian calendar	-205 – -204
Hebrew calendar	3563 – 3564
Hindu calendars
- Bikram Samwat	-141 – -140
- Shaka Samvat	N/A
- Kali Yuga	2904 – 2905
Holocene calendar	9803
Iranian calendar	819 BP – 818 BP
Islamic calendar	844 BH – 843 BH
Japanese calendar
Korean calendar	2136
Thai solar calendar	346

Events

After his election to the consulship, Titus Quinctius Flamininus is chosen to replace Publius Sulpicius Galba Maximus as the leading Roman general in Macedonia. He then crosses into Macedonia with his army. Flamininus realizes that future peace depends on breaking the power of king Philip V of Macedon, not merely humbling him. He secures the backing of the Achaean League and then opens peace negotiations with Philip at Nicaea in Locris. Though peace proposals are submitted to the Roman Senate, the talks break down, and fighting resumes.
Titus Quinctius Flamininus' forces manage to push Philip V out of most of Greece, except for a few fortresses. He then defeats Philip V in the Battle of the Aous, near modern Tepelenë in Albania.

The Battle of Panium is fought between Seleucid forces led by Antiochus III and Ptolemaic forces led by Scopas of Aetolia. The Seleucids win the battle which allows Antiochus III to obtain entire possession of Palestine and Coele-Syria from King Ptolemy V of Egypt. Though the Romans send ambassadors to Ptolemy V, they are unable to lend him any serious assistance against Antiochus III.
In the resulting peace, Antiochus III agrees to give his daughter Cleopatra in marriage to Ptolemy V.

Following the defeat of the Han at the hands of the Xiongnu at Baideng in 200 BC, courtier Liu Jing (劉敬) is dispatched by Han emperor Gaozu for negotiations. The peace settlement eventually reached between the parties includes a Han princess given in marriage to the chanyu (called heqin 和親 or "harmonious kinship"); periodic tribute of silk, liquor and rice to the Xiongnu; equal status between the states; and the Great Wall as mutual border. This treaty sets the pattern for relations between the Han and the Xiongnu for some sixty years.