Answer:
Takings Clause
Explanation:
The takings clause stated that the Government cannot acquire ownership toward a privately held properties without giving the original owner with proper compensation for that properties.
This can be seen in the example above.
The government wanted to acquire land which owned by Bill. If the government want to use its legal power to take it, the takings clause required the government to convert the land to its current market value and provide compensation with that amount as a minimum to the original owner (in this case, Bill)
One factor that would make it possible is the decrease in the number of deaths, which could be a result of improved health care. In a country which a very low life expectancy in 1970 (50 years) an increase can be achieved easily with small health improvements and in fact it increased to 65 years since 1970s.
It would be the Hacienda system. I’m not sure if your talking about Spanish slavery but if you are it’s the Hacienda system because it functioned by keeping the people working on the land in debt in some way or another so that they could not leave.