World War 1 brought a series of technological advances that would change the way people live. For example, synthetic rubber was introduced and it dramatically changed the automotive industry. In medicine, the introduction of blood banks meant that it was now possible to store blood instead of having to directly transfer it from donor to recipient. Debridement, which is the removal of infected flesh in order to heal wounds, was also developed during this period.
This shifted the appliance of science into creations that would be used for mass consumption in order to improve the quality of living of people.
Answer: extremes of wealth and poverty threatened democracy.
The nineteenth-century labor movement came about because of the workers need of protection of their common interest.
Americans in the industrial sector, organized labor unions to fight for better wages, fair working hours and safer working conditions. In 2009, almost 12% belonged to labor unions. The movement argued about extremes of wealth and poverty threatened democracy.
