GOTW- Counting - Page 23

Roman empire

• The Roman fort Castra Regina ("fortress by the Regen river") is built at Regensburg, on the right bank of the Danube in Germany.
• Roman legionaries of Legio II Adiutrix engrave on the rock of the Trencn Castle (Slovakia) the name of the town Laugaritio, marking the northernmost point of Roman presence in that part of Europe.
• Marcus Aurelius drives the Marcomanni over the Danube and reinforces the border. To repopulate and rebuild a devastated Pannonia, Rome allows the first German colonists to enter territory controlled by the Roman Empire.

[edit]Asia

• Abgar IX the Great becomes King of Edessa.
• Gogukcheon succeeds his father Shindae as King of Goguryeo.
• Han Dynasty China: The full title of the Nine Chapters on the Mathematical Art appears on two bronze standard measures dated to this year, yet there is speculation that the same book existed beforehand only under different titles. In the 3rd century, Liu Hui would provide commentary on this important early Chinese mathematical treatise.