The era when Anthony Quinn and Ricardo Montalban played the entire brown population of the planet, and Rita Moreno played a Siamese princess in THE KING AND I. When Donna Reed played Sacagawea in THE FAR HORIZONS, the 1950s Hollywood version of the Lewis & Clark Expedition. When John Wayne played Genghis Khan in THE CONQUEROR. I could name a few more, but I'm starting to twitch just typing those examples.