It says to look at your home work
Recounting his beatings at Covey's farm in Narrative of the Life of Frederick Douglass, An American Slave, Douglass described himself as "a man transformed into a brute!" Still, Douglass came to see his physical fight with Covey as life-transforming, and introduced the story in his autobiography as such
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>