Alexey Pajitnov As a child, he was a fan of puzzles and played with pentomino toys. In creating "Tetris," he drew inspiration from these toys. Pajitnov created "Tetris" with the help of Dmitry Pavlovsky and Vadim Gerasimov in 1984. The game, first available in the Soviet Union, appeared in the West in 1986. Pajitnov also created a sequel to "Tetris", entitled "Welltris", which has the same principle but in a three dimensional environment where the player sees the playing area from above. "Tetris" was licensed and managed by Soviet company ELORG, which had a monopoly on the import and export of computer
Corporate anniversary a global advertising effort. In 1972, "Time magazine" celebrated its 50th anniversary with events throughout the year: Goya Foods, on its 75th anniversary, donated a million pounds of food to help fight hunger and announced scholarship programs as well as held parties in different locations. There is flexibility in terms of choosing which dates to use when determining an anniversary. The start date is often the month or year when a firm was founded, but this can vary considerably, and exceptions are the rule; for example, Lego toys celebrated its 50th anniversary in 2008 –– exactly 50 years after the