Wikipedia to the rescue: https://en.wikipedia.org/wiki/Timeline_of_algorithms https://en.wikipedia.org/wiki/Timeline_of_algorithms (Interestingly, some of the

Wikipedia to the rescue: https://en.wikipedia.org/wiki/Timeline_of_algorithms https://en.wikipedia.org/wiki/Timeline_of_algorithms (Interestingly, some of the algorithms mentioned in the article are missing from the list. It also doesn't list many algorithms from 19th century.) And indeed it seems, there are not so many recently, though I think AKS Primality Test would qualify as a great algorithm of 21st century.