The two most important new technologies that enabled the development of the skyscraper were

Answer

The Elevator and mass-produced steel

Explanation

The mass production of steel enabled the development of skycrapers because steel facilitated the design of reinforced concrete structures that a new technology in building sector.Different designs of elevators facilitated the movement of building materials over the heights and ensured safety of workers too.

other sources of text

explanation:

this can be magazines, news reports, scholarly articles, textbooks, research papers etc.

well first we can compare on what the slave masters ate and what the slaves ate well the masters ate fancy great food like chicken rice mash potatose and stuff like that and slaves ate well food that your not suppost to eat like the weird parts of turkey and chicken and slaves master chilled beat and eat and slaves work get beat and get little of sleep there you go