The answer is concrete.
<span>The Romans' ingenious use of concrete was
instrumental in the construction of the great cathedrals of Europe 1,000 years
later. Vaulting of concrete completed the building of the great cathedrals and amphitheater
of the Romans. It also made the Pantheon dome and the Palestrina’s Sanctuary of
Fortuna Primigenia. </span>
Answer:
Spanish settlement resulted in much suffering and hardship; it turned many Native Americans into slaves and killed millions of them through battle, mistreatment, and disease.
Tolerance for all people of any faith or color was strongest in the "middle colonies." There were high rates of immigrants from many parts of Europe to the middle colonies and there were also specific laws that protected religious freedoms and diversity.
The Franco-Austrian War of 1859 was the agent that began the physical process of Italian unification. ... The northern Italian states held elections in 1859 and 1860 and voted to join the Kingdom of Piedmont-Sardinia, a major step towards unification, while Piedmont-Sardinia ceded Savoy and Nice to France.
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