Which game dates back to at least the Roman Empire: Nine Men's Morris, or Icehouse pieces?
Nine Men's Morris Nine Men's Morris is a strategy board game for two players dating at least to the Roman Empire. The game is also known as Nine Man Morris, Mill, Mills, The Mill Game, Merels, Merrills, Merelles, Marelles, Morelles and Ninepenny Marl in English. The game has also been called Cowboy Checkers and is sometimes printed on the back of checkerboards. Nine Men's Morris is a solved game in which either player can force the game into a draw.
Chinese handball Chinese handball (known in its 3-or-more-player forms as "Ace-King-Queen", "King(s)", "Down the River" or "Slugs"), is a form of American handball popular on the streets of New York City, Philadelphia, and Bridgewater, New Jersey during the 1960s, '70s, and '80s and is still played today, mostly in New York City, Philadelphia, and San Diego. Different variations are played around the world. Its defining feature is that, unlike traditional handball, in Chinese or indirect handball, for a shot to be valid, the ball must hit the ground before it hits the wall. It would seem that this game, or mini variants of it, were highly popular almost worldwide in the 1950s, 1960s and 1970s.