John Dalton (1803) proposed modern atomic theory, stating matter consists of indivisible atoms with specific weights.

The Sapir-Whorf hypothesis suggests language influences thought and worldview, highlighting the relativity between culture and speech.

The Panama Canal, opened in 1914, links the Atlantic and Pacific Oceans, greatly reducing shipping time between east and west.

Orville and Wilbur Wright achieved the first powered flight on December 17, 1903, at Kitty Hawk, North Carolina.

Charles Darwin published "On the Origin of Species" (1859), proposing natural selection as a mechanism for evolution.

Ultraviolet B radiation converts skin precursors into vitamin D, essential for calcium metabolism and bone health.

Johannes Kepler established his laws (1609–19) describing elliptical orbits and planetary motion around the Sun.

Ferdinand Magellan led the first expedition to circumnavigate the globe (1519–1522); although he died en route, the voyage completed the circuit.

Ancient Carthage was located in present-day Tunisia and became a rival of Rome in the Punic Wars. This is a well-documented historical or scientific.

The U.S. Supreme Court is the highest federal court, with final authority on constitutional and federal law interpretation.