What is an Old card game for three people?

It's impossible to say definitively what the "Oldest card game for three people" is, as card games have been played for centuries across diverse cultures, with many evolving over time.

However, some popular and likely quite old card games for three players include:

* Cribbage: A game of skill and strategy, Cribbage is a well-loved game that can be played with two or three players. While its exact origins are debated, it likely dates back to the 17th century.

* Hearts: This trick-taking game is a classic for a reason. Its simple rules and fast gameplay make it enjoyable for all ages. It's thought to be a variation of an even older card game called "Reversis," which dates back to the 18th century.

* Pinochle: This trick-taking game, with its unique scoring system, is another popular choice for three players. It has been played in various forms since the 18th century.

* Canasta: A rummy-like game that uses two decks of cards, Canasta is popular with three or more players. Its origins are traced back to the 1940s, but it likely built upon older rummy games.

* Euchre: A trick-taking game that is fast-paced and exciting, Euchre is often played with four players, but can also be adapted for three. Its roots are in Germany, and it dates back to the 19th century.

Remember, this is not an exhaustive list, and many other card games could be considered "old" and suitable for three players.

To find out more about the history of specific card games, consider looking for resources on the history of card games or researching individual games online.