Plz, revise and edit this writing.?

Question

The game of basketball was invented in America. It was invented by a physical education teacher from Canada. His name was James Naismith. Basketball was devised in 1891 by Naismith. Naismith was employed in the job of teaching a high-spirited group of young men in a gym class at the YMCA in Springfiled, Massachusetts; he was instructed to create a new game that would keep the young men in his class busy indoors. This was because the winter was too cold and windy in Springfield to be playing a sport outdoors. Naismith tried to think up a game that would be easy to learn but would be challenging; it had to be one that could be played indoors by a large number of players and that would give a lot of exercise.
Players used a soccer ball. Players had to throw the ball into raised baskets, so he called the game “basketball.” It took Naismith only about an hour to make up the original rules for basketball. There were thirteen of these rules. (Continue)

Answer 1

I have modified your text to try and make it more smooth flowing, and avoid repetition. However, if you feel I have made too many changes, there was very little gramatically wrong with the original.

The game of basketball was invented in America in 1891 by a physical education teacher from Canada. His name was James Naismith. His brief was to teach a high-spirited group of young men in a gym class at the YMCA in Springfiled, Massachusetts; he was instructed to create a new game that would keep them busy indoors. This was because the winter was too cold and windy in Springfield for anyone to play a sport outdoors. Naismith tried to think up a game that would be easy to learn, but challenging; it had to be one that could be played indoors by a large number of players, and that would give a lot of exercise. Players used a soccer ball which they had to throw into raised baskets; so he called the game “basketball”. It took him only about an hour to make up the original rules, of which there were thirteen. (Continue)

Answer 2

The game of basketball was invented in America in 1891 by a Canadian physical education teacher named James Naismith. Naismith taught a high-spirited group of young men in a gym class at the YMCA in Springfield, Massachusetts. As it was much too cold and windy in Springfield for the young men to always play outdoors, he was instructed (INSERT BY WHOM) to devise a new game that would keep them entertained indoors. Naismith tried to think up a game that would be easy to learn but would be challenging as well. It had to be one that could be played indoors by a large number of players and would also involve lots of physical exercise.
Naismith created a game where the players used soccer balls and threw the balls into raised baskets, thusly naming his game "Basketball." It took Naismith only about an hour to make up the original thirteen rules for basketball.