1) The world's tallest waterfall is Angel Falls in Venezuela, with a height of about 3,212 feet (979 meters).
2) The first graphical web browser, Mosaic, was released in 1993 and played a key role in popularizing the World Wide Web.
3) The game of baseball, often referred to as "America's pastime," is played between two teams of nine players and has a rich history dating back to the 18th century.
4) The world's first stock exchange was established in Amsterdam in 1602.
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