1870s
Cowboys drive 5 million wild cattle from texas to the railhead in kansas
1870s
Westward migration transforms the great plains into the breadbasket of america
1870s
The settlers hunt the American Bison to near extinction
1870s
The results is conflict with the plains indians whose way of life depends on the animal (10 ene 1870 año – 3 oct 1879 año)