:''For the brand of bicycle tubing, see
Reynolds 531.''
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Events
By Place
Byzantine Empire
★
April 19 —
Belisarius is defeated at the
Battle of Callinicum;
Mundus briefly takes command of the army.
★ Some members of the Blue and Green
chariot racing factions in
Constantinople are imprisoned for murder, precipitating the
Nika riots the next year.
★ Building of St. Sophia Basilica, Constantinople, begun (-537)
Europe
★
Theudis succeeds
Amalaric as king of the
Visigoths.
★ The
Franks and
Saxons defeat the Kingdom of
Thuringia.
Asia
★ End of the reign of
Chang Guang Wang, ruler of the Chinese
Northern Wei Dynasty.
★
Khosrau I succeeds
Kavadh I as
king of Persia.
Births
★
Yan Zhitui, Chinese scholar, official, calligrapher, painter, musician, writer, antiquarian, and Buddhist (d.
591)
Deaths
★
Amalaric, king of the
Visigoths, killed in battle
★
Xiao Tong
★
Emperor Xiaozhuang of Northern Wei