Parker Brothers is an American toy and game manufacturer and brand. Since 1883, the company has published more than 1,800 games; among their best known products are Monopoly, Cluedo (licensed from the British publisher and known as Clue in North America), Sorry!, Risk, Trivial Pursuit, Ouija, Aggravation, Bop It and Probe. Parker Brothers is currently a subsidiary of the multinational entertainment company Hasbro.