From which state did cattle-ranchers originally spread into the Great Plains?

After 1865 there was more competition from other groups for land in the Great Plains. Which of the following groups competed with the cattle-ranchers for land from 1865 onwards?

Between 1865 and 1870 large numbers of cattle were driven across the plains to Missouri, where they were put onto trains for the journey to Chicago. What were the overland journeys called?

The Homestead Acts - particularly that of 1862 - gave the ranchers' rivals easy terms to acquire land. 160 acres were available for each family provided that they worked the land for a fixed period of years. How many years was this?

Railroad companies were similarly courted by the government, and they were offered more land than they needed to lay down the track. How much were they given either side of the rails?

What name was given to land in the Great Plains that was unfenced and free for anyone to use?

The shootout at the OK Corral was a notorious incident in October 1881, that showed the rough and ready approach to law and order in the old West. Near which town did this incident take place?

What do Pat Garrett and Wyatt Earp have in common?

A war erupted in Wyoming in 1892 between "Homesteaders" and cattle-ranchers. In which county did this event take place?

For land to be designated a "territory" at this time it would need to have a population of 5, What population would be required for "state" status?