There is no REAL reason that racsim began...it has been around since ancient times, when one race feels that they are superior to the other. The western countries for example, when they arrived in china in the 1800's, both nations believed that they were superior than the others. So its more of a believe than a casue.
in america
Japanese immigration to America begain in 1819Japanese immigration to America begain in 1819
Ancient India
Source
Lexington, Massachusetts
The MLB begain in 1876.
Netball begain in Libbys womb
1902.....why not look on the wikipedia?
At the North Pole.
timberwolves
the amazon
John Marsden