> In fact, the ‘-ize’ forms have been in use in English spelling since the 15th century: they didn’t originate in American use, even though they are now standard in US English. The first example for the verb organize in the Oxford English Dictionary is from around 1425, from an English translation of a treatise on surgery written by the French physician Guy de Chauliac:
The brayne after þe lengþ haþ 3 ventriclez, And euery uentricle haþ 3 parties & in euery partie is organized [L. organizatur] one vertue.