What happened between 1835 and 1850?

Between 1835 and 1850, significant events shaped both the United States and the world. In the U.S., this period saw the rise of the abolitionist movement, increasing tensions over slavery, and the expansion westward, culminating in the Mexican-American War (1846-1848). The discovery of gold in California in 1848 led to the Gold Rush, dramatically increasing the population and economic development of the West. Additionally, this era was marked by social reform movements, including women's rights and education reforms.