The following lists events that happened during 1870 in Qajar era.
Incumbents Monarch: Naser al-Din Shah Qajar
Births October 12 – Mirza Jahangir Khan, Iranian writer. ? – Ashraf Gilani, Iranian literary, poet, journalist and cleric. ? – Hassan Modarres, Prime Minister of Iran.
Deaths December 9 – Alexander Kasimovich Kazembek, Russian orientalist, historian and philologist.
References