Background Despite the passage of the 15th Amendment in 1870, which granted African American men the right to vote, Southern states used literacy tests, poll
Background The Mexican-American War (1846-1848) stemmed from territorial disputes between the United States and Mexico. After Texas gained independence from Mexico in 1836 and later
Background By the late 1760s, tensions between American colonists and British authorities had escalated due to Britain’s increasing taxation policies. The Townshend Acts (1767) imposed
Background Japan, heavily reliant on nuclear energy, faced an unprecedented crisis when a natural disaster overwhelmed its safety measures. By 2011, nuclear power supplied 30%
Background: For decades, scientists sought to understand how genetic information was stored and transmitted. Early research on DNA suggested it played a role in heredity,
Background: Following the Civil War, the Reconstruction era brought new opportunities for African Americans, including political representation. The passage of the 15th Amendment granted African