1832.—Lieutenant A. Burnes’ journey to Kabul, Bokhara, Merv, and Meshed.
1833.—Unsuccessful Persian expedition against Herat.
1837.—Persia, instigated by Russia, marches against Herat.
1837.—Siege of Herat and defence by Eldred Pottinger, November 1837, to June 1838.
1837.—Mission of Sir Alexander Burnes to Kabul to make peace between Dost Mahommed and Ranjit Singh, September 1837.
1837.—Russian agent, Vitkievitch, at Kabul, December 1837.
1838.—Wood explores the Upper Oxus to Lake Siri-kol.
1838.—Rupture of relations with Dost Mahommed. Recall of Burnes.
1838.—Beginning of first Afghan War, November 1838.
1839.—Capture of Kandahar.