January 1, 1929
Military conflict in Afghanistan from 1928 to 1929
Sino-Soviet conflict — Border conflict between China and the Soviet Union in 1929
Battle fought between the rival armies of the Liangguang region in Southern China as part of the internal conflicts within the Kuomintang leading up to the Central Plains War
1929 treaty governing commercial aviation liability
1929 military engagement
1929 Barcelona International Exposition — international exhibition in Barcelona, Spain
Wall Street crash of 1929 — major American stock market crash
International peace treaty
Lateran Treaty — Treaty between the Holy See and Kingdom of Italy
Saint Valentine's Day Massacre — February 1929 gang showdown in Chicago, Illinois, USA