What is the origin of 'sleep tight'?
Read moreOne of the mysteries of the English language finally explained.
(1485–1547), first of the Spanish conquistadores. Cortés overthrew the Aztec empire, conquering its capital, Tenochtitlán, in 1519 and deposing the emperor, Montezuma. In 1521 he destroyed Tenochtitlán completely and established Mexico City as the new capital of Mexico (then called New Spain).