From Longman Dictionary of Contemporary English... and the rest is history... and the rest is historyinformalKNOW something used to say that everyone knows the rest of a story you have been telling → history
Examples from the Corpus
... and the rest is history• Then, when he was 17, he picked up a basketball, and the rest is history.• She noticed that he had a cute bum - and the rest is history.• Manufacturers responded by building cheaper modem hardware, and the rest is history.• Dependence was imposed and the rest is history and green beans, cotton tee-shirts, patronage, and serfdom.• But then he started scribbling away at A Year in Provence and the rest is history.• He was initially hired by the Oxford Mail, then began to concentrate on sport, and the rest is history. 