Who said those who forget history are doomed to repeat it?

This saying appears in many different forms, but the earliest version

is probably that of the poet and philosopher George Santayana: "Those

who cannot remember the past are condemned to repeat it."

"Notable Quotations from George Santayana

'Those who cannot remember the past are condemned to repeat it.'

"Life of Reason," Reason in Common Sense, Scribner's, 1905, page 284"