- Jul 4 Huskar Pit Disaster: 26 children drown trying to escape flooding in the Silkstone Colliery in England. Leads to the 1842 Mines Act, which bans women and children working underground. [1]
- Jul 4 Iowa Territory is organised from Wisconsin Territory, lasting until 1846
- Jul 7 Central American federation is dissolved
- Jul 8 Arabs attack Jewish community of Safed