UNO is one of the most iconic and enduring card games in the world. Known for its vibrant colors, fast-paced action, and simple rules, uno online has been a staple in households, schools, parties, and game nights since it was first introduced in 1971. Originally created by Merle Robbins in Ohio, USA, the game has since been bought by Mattel and enjoyed by millions globally. Its universal appeal lies in its accessibility—easy to learn, quick to play, and endlessly entertaining.