McCulloch v. Maryland was a landmark case in which the Supreme Court ruled that the federal government had the power to establish a national bank and that states could not tax federal institutions. This decision established the principle of federal supremacy over state laws.

Social Security Act: U.S. law enacted in 1935. Established social welfare programs, including retirement benefits and assistance for the elderly, disabled, and unemployed.

The Fugitive Slave Act of 1793 allowed slave owners to capture and reclaim escaped slaves, reinforcing the institution of slavery in the United States.

Infamous 1881 shootout at O.K. Corral: Legendary Wild West clash between lawmen and outlaws in Tombstone, Arizona. Gunslinger showdown with lasting historical impact.

Taps is a military tradition that originated during the American Civil War and is played at military funerals and ceremonies to honor fallen soldiers.

The Pullman Strike of 1894 was a nationwide railroad strike led by Eugene V. Debs and the American Railway Union, protesting wage cuts and poor working conditions for Pullman Palace Car Company employees. The strike was eventually broken up by federal troops, leading to the imprisonment of Debs and the decline of the ARU.

Arlington National Cemetery is a military cemetery in Virginia, USA, where over 400,000 service members and their families are buried. It is a place of honor and remembrance for those who have served their country.