: Mahmud Tarzi introduces modern Journalism with the creation of several newspapers.
- Habibullah is assassinated, and succeeded by his son Amanullah.
- The first museum in Afghanistan is instituted at Baghe Bala.
- Third Anglo-Afghan war;
- The British are defeated and give up control of Afghan foreign affairs.
- Amanullah Khan begins efforts at social and political modernization.
: Amanullah Khan changes his title from Amir to Padshah (King).
- Amanullah Khan is overthrown by Habibullah Kalakani.
- After the fall of Amanullah Khan, Mahmud Tarzi seeks asylum in Turkey.
- Habibullah Kalakani is killed by Nadir Khan.
May - Pro-Amanullah Khan uprising put down by Nadir Khan.
- Nadir Khan abolishes reforms set forth by Amanullah Khan.
- Nadir Khan assassinated by a college student.
- His son, Zahir, inherits the throne. He rules until 1973.
- Mahmud Tarzi dies in Turkey at the age of 68.
: The United States formally recognizes Afghanistan.
: State Bank of Afghanistan is incorporated.
: Pro-Amanullah Khan uprising;
: Zahir Shah proclaims Afghanistan as neutral during WW2.
- Britain withdraws from India.
- Pakistan is formed from Indian and Afghan lands.
- Parliament denounces the Durand Treaty and refuses to recognize the Durand line as a legal boundary between Pakistan and Afghanistan.
- Pashtuns in Pashtunistan (Occupied Afghan Land) proclaim independence, but are unacknowledged by the world community.