Before the 1800s, builders used cast iron. But they found that structural steel beams set in concrete allowed them to frame tall buildings that were more fire resistant and more structurally sound than cast iron. Since that time, steel has not only become the best building material for commercial construction but closely tied to economic health.
In 1917, Einstein<span> applied the general theory of relativity to model the large-scale structure of the universe. He was visiting the United States when Adolf Hitler came to power in 1933 and, being Jewish, </span>did<span> not go back to</span>Germany<span>, where he had been a professor at the Berlin Academy of Sciences.</span>
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answer I think its c his commitment to civil rights
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Napoleon, just needing to keep the harmony in France and the landmass yet couldn't due to the maneuvers of the British, had to overcome in light of the fact that he needed to debilitate his foes across Europe into not making war with him and against France until kingdom come.
It helped tham grow plants and it was believed to be a place that the gods loved.
hope this helps you and can i get brainlist
