when- between 1866 and 1886,
what- A cattle drive is the process of moving a herd of cattle from one place to another, usually moved and herded by cowboys on horses.
where- 20 million cattle were herded from Texas to railheads in Kansas, for shipments to stockyards in Chicago and points east.
who- cowboys were part of the cattle drive
why-Cattle drives were a major economic activity in the 19th-century American West
story- It wasn’t until 1866 that eastern Montana really got on the map for cattle. That year Nelson Story drove a heard of 600 Texas longhorns into the eastern portion of the state.