The Rosetta Stone (1799) allowed scholars to decode Egyptian hieroglyphics using its Greek translation.

Sputnik 1, launched by the USSR in 1957, was the first artificial satellite, marking the start of the space race.

Nicolaus Copernicus published *De Revolutionibus* (1543), proposing the Sun, not Earth, as the universe’s center.

Petra in Jordan was built by the Nabataeans, known for rock-cut architecture and advanced water systems.

Andrew Wiles proved Fermat's Last Theorem in the 1990s, resolving a problem that had stood for over 350 years.

The 1929 crash triggered the Great Depression, causing widespread unemployment, poverty, and global economic collapse.

The Sahara Desert in Africa is the largest hot desert, covering 9.2 million sq km, though Antarctica is the largest overall desert.

The Great Fire of London in 1666 destroyed much of the city, starting in a bakery on Pudding Lane, reshaping urban planning.

Wolfgang Amadeus Mozart composed "The Magic Flute" (1791), a landmark of classical opera blending Masonic symbolism and popular delight.

The Maya thrived in Central America, particularly Mexico, Guatemala, and Honduras, known for their calendar, writing, and cities.