605

Year 605 was a common year starting on Friday of the Julian calendar. The denomination 605 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

Emperor Phocas recognizes Agilulf as king of the Lombards, and signs a peace treaty. He pays a tribute and cedes Orvieto, among other towns. The Byzantine army is withdrawn from the Balkan Peninsula.
Phocas has Constantina, empress consort of Maurice, and her three daughters arrested. He accuses her of conspiracy, and has them executed at Chalcedon.

King Æthelfrith annexes the neighboring kingdom of Deira. The region between the Forth and Humber rivers will hereafter be known as Northumbria, the most powerful of the Anglo-Saxon kingdoms.

As a result of a quarrel between the Lakhmids and King Khosrau II, the Persian frontier with Arabia is no longer guarded.

Emperor Yángdi orders the capital to be transferred from Chang'an to Luoyang. He begins the construction of the Grand Canal, that will link existing waterways to the new Chinese capital; it will be built by a million laborers.
Yángdi introduces an imperial examination, designed to select the best administrative officials for the state; this begins a long bureaucratic tradition of scholar-officialdom in China.
The Zhaozhou Bridge is completed under the Sui dynasty, the earliest known fully stone open-spandrel segmental arch bridge in the world.
Amshuvarma becomes king of the Licchavi in Nepal. He is credited for opening trade routes to Tibet. His ruling period is known as the "Golden Period".

Aj Ne' Yohl Mat becomes ruler of the Maya city of Palenque. During his reign his kingdom is invaded by people from Calakmul.