Lacrosse has its origins in a tribal game played by eastern Woodlands Native Americans and by some Plains Indians tribes in what is now the United States of America and Canada. The game was extensively modified by European settlers to create its current collegiate and professional form. There were hundreds of native men playing a ball game with sticks. The game began with the ball being tossed into the air and the two sides rushing to catch it. Because of the large number of players involved, these games generally tended to involve a huge mob of players swarming the ball and slowly moving across the field. Passing the ball was thought of as a trick, and it was seen as cowardly to dodge an opponent. Years later lacrosse is still a popular sport played all over the world.