Ahmad Shah Qajar

Anglo-Persian Agreement provokes opposition and remains unratified

📅 9 Augustus 1919

The agreement proposed British advisers for Iran’s military and finances and a British-arranged loan. Opponents feared it would turn British influence into control over state policy. It faced public...

Coup brings Reza Khan and Seyyed Zia to power

📅 21 Februari 1921

Cossack forces led by Reza Khan entered Tehran and helped install journalist Seyyed Zia al-Din Tabataba’i as prime minister. British officials had contacts with plotters and British policy shaped...

Majlis ends Qajar rule and establishes the Pahlavi dynasty

📅 12 December 1925

The Majlis voted to depose the Qajar dynasty and transfer provisional governing powers to Reza Khan pending a constituent assembly. Reza Khan was crowned Reza Shah in 1926. Parliamentary procedure...