Based on the information that you supplied it would seam that "Luther believed that people are saved by their faith; Calvin argued that only God saves, not any human acton, faith, or belief" would be a central idea between the two
Answer:
The elevator revolutionised the Vertical transportation and logistics. Prior to that, even though the usual transportation between places was developed mainly because of the advancements in the vehicle and naval transportation, moving things "up" and vertically was supper difficult. Mainly moving people.
The elevator allowed the development of the Skyscraper. Tall buildings that could house thousands of people and eventually that would become the symbol of America.
Explanation:
A "nuclear family" is A, a household made up of a father, mother, and their children.
The term is often used when talking about traditional families vs diverse families (families that don't follow the "nuclear family" model. Ex: same-sex couples with adopted children).
