March 22, 1993: World Water Day. 22 March is World Water Day, set by the United Nations. Since 1993 it has been a day to think about how precious clean water is. Some places overflow with water, like Iguazu Falls in South America, but many people in the world still find it hard to get clean drinking water.
1394 🚀 Ulugh Beg was born; this ruler and astronomer built a giant observatory in Samarkand and made one of the most accurate star catalogues of his time. Registan, Samarkand →
1896 🏅 Charilaos Vasilakos won the first modern Olympic marathon trial race in Greece, finishing the long run in just over three hours.
1960 💡 Arthur Schawlow and Charles Townes received the first patent for the laser, a beam of light now used in barcode scanners, surgery and music players.
🧠 Question of the day
Who set up World Water Day?
A swimmer
The Olympic Committee
The United Nations
Show the answer
Answer: The United Nations
🐾 World day: International Day of the Seal
Seals stay warm in icy seas thanks to a thick layer of blubber.