do you knowwhen basketball was invented?原文

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If you travel around China you will notice a very popular activity everywhere you go--basketball.This much-loved and active sport is enjoyed by many,for fun and exercise.
The sport of basketball is a little over a hundred years old.It is played by more than 100 million people in over 200 countries including China ,where basketball has been play in parks,schools,and even in factories.
Basketball was invented by a Canadian doctor named James Naismith,who was born in 1861.When he was at college,his class was once asked to invent a new game that could be played indoors during the long winters.Dr Naismith created a game to be played on a hard wooden floor,so the safety of the players was important.Knocking into players and falling down would be dangerous.