What were some of the major accomplishments of Roman engineers?

Roman engineers improved upon older ideas and inventions to introduce a great number of innovations. They developed materials and techniques that revolutionized bridge and aqueducts' construction, perfected ancient weapons and developed new ones, while inventing machines that harnessed the power of water.

Explanation:

Roman engineers improved upon older ideas and inventions to introduce a great number of innovations. They developed materials and techniques that revolutionized bridge and aqueducts' construction, perfected ancient weapons and developed new ones, while inventing machines that harnessed the power of water.

lend lease program was passed by congress on march 11, 1941. the president could ship weapons, food, or stuff to any country whose struggle against the axis assisted u.s. defense