From Longman Dictionary of Contemporary Englishsomething will go down in historysomething will go down in historyIMPORTANTused to say that something is important enough to be remembered and recorded This day will go down in history as the start of a new era in South Africa. → history
Examples from the Corpus
something will go down in history• 1989 will go down in history as the year in which Stalinist Communism ended.• This Minister will go down in history as the Minister who killed off small shops in Britain. 