6 events the sources record for this year, grouped by region.
What happened
China (1)
Duke Xian of Qin defeated the armies of the three Jin states at Shimen and beheaded sixty thousand; the King of Zhou bestowed on him ceremonial robes embroidered with fu-fu patterns. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷002 (원문 단락 #89, -364년))
He gathers an army at Pharsalus and marches against Alexander (Plutarch's Parallel Lives Plut. Pelopidas 32)
Both armies send out infantry to seize the hill of Cynoscephalae first (Pelopidas is killed here) (Plutarch's Parallel Lives Plut. Pelopidas 32)
During the Olympic games, which were being run by Arcadians and the people of Pisa, the Elean army attacks from the opposite side, and a fierce battle breaks out within the sanctuary. (Xenophon, Hellenica 7.4.28–7.4.31)
Over the use of Elean sacred property, Mantinea first votes against using sacred treasures, and the Arcadian league splits. (Xenophon, Hellenica 7.4.33–7.4.35)