Longest word in English

English alphabet

Hawaiian alphabet: 13 letters (5 vowels, 8 consonants)

Sorbian languages

There are approximately 7,000 languages globally; one language goes extinct roughly every two weeks

Googol

A googol is 10^100 — Google was named after it (misspelled)

Mandarin Chinese

Mandarin Chinese: ~920 million native speakers

OK gesture

OK's universal recognition traces back to the 1830s, origins debated

History of the Hindu–Arabic numeral system

The word 'algorithm' originates from al-Khwarizmi, a 9th-century Persian mathematician