J.J. Thomson discovered the electron using cathode ray experiments in 1897, earning the Nobel Prize in Physics in 1906.

The UN was established in 1945 after World War II to maintain international peace, replacing the failed League of Nations.

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

Abyssinia is the historical name for Ethiopia, a nation with a rich history of independence and ancient Christian heritage.

Henri Becquerel discovered radioactivity in 1896, later studied by the Curies and vital for nuclear science.

Hammurabi’s Babylonian code (18th century BCE) was one of the earliest legal codes, inscribed on stone steles.

The Great Barrier Reef, the world’s largest coral reef system, lies off Australia’s coast, stretching over 2,300 kilometers.

Isaac Newton formulated universal gravitation, showing that bodies attract with a force proportional to mass and inversely to distance squared.

Ozone’s formula is O3, consisting of three oxygen atoms, playing a vital role in absorbing harmful UV radiation in Earth’s stratosphere.

The Parthenon, built in the 5th century BCE, was a temple honoring Athena, the patron goddess of Athens.