Dr. Wilder claims to be the first person to recognize that the 'center of disturbance', center of a ridge pattern, is always where a volar pad exists. Wilder is also noted for the idea that ridges are ridge units fused together, a hypothesis which still remains unproven.
Tic-tac-toe is a game that is traditionally played by being drawn on paper, and it can be played on a computer or on a variety of media. History of Tic Tac Toe An early variation of the game was played in the Roman Empire, around the 1st century B.C.
Playing Tic Tac Toe on a 3x3 Board. X always goes first. Players alternate placing Xs and Os on the board until either (a) one player has three in a row, horizontally, vertically or diagonally; or (b) all nine squares are filled. If a player is able to draw three Xs or three Os in a row, that player wins.