While many people in 1920s Amercia enjoyed new consumer goods and luxuries, some groups, such as farmers and those employed in traditional heavy industries, experienced extreme poverty. This, together with social inequality and racism, resulted in increased tensions across the nation.
A hogan is more of a permanent home, it takes a lot more time and materials to build. The Navajo are people that had kept sheep and goat, they mostly lived at between 5000 and 8000 feet in elevation. Some apache did make make hogans but they also used tipis. Apaches live a more mobile life style so other types of houses were more useful.
The first use of the 25th Amendment occurred in 1973 when President Richard Nixon nominated Congressman Gerald R. Ford of Michigan to fill the vacancy left by Vice President Spiro Agne
Serfs were laborers who were bound to their lords property, so though they worked the land, the land still belonged to the lord that they worked for.