WORLD HISTORY

Detailed explanation-1: -The development of concrete to form the structural core of buildings was one of the most important innovations in Roman architecture. Concrete is easier and quicker to use than cut stone, and its raw materials are cheap and easy to transport.

Detailed explanation-2: -Stones, wood, marble, and materials produced such as “Roman concrete, ‘’ bricks, and even glass allowed the buildings to stand.

Detailed explanation-3: -Roman architecture is known for concrete-domed buildings, the innovative use of the arch, the amphitheatre design, the basilica, the triumphal arch, and residential apartment blocks.

Detailed explanation-4: -Roman concrete, also called opus caementicium, was used in construction in ancient Rome.