Transportation.
Carbon dioxide.
Quicker easier travel.
Answer:
The answer is concrete
Explanation:
Ancient Roman concrete was a mixture of lime mortar, aggregate, pozzolana, water, and stones, and was stronger than previously-used concretes. The ancient builders placed these ingredients in wooden frames where they hardened and bonded to a facing of stones or (more frequently) bricks.
One of the main reasons why many Europeans sailed to Japan, China, and India in the fifteenth century is because "<span>Those lands were wealthy with gold, jewels, and spices", since Europe lacked these specific goods. </span>
The Emancipation Proclamation shifted the aim of the Civil war to freeing of the slaves in addition to preserving the Union. This was the main accomplishment of the Proclamation - freeing of slaves. This led to prevention of European involvement in the war since many Europeans were against slavery. This was yet another of Lincoln's accomplishments being that Britain and France had considered supporting the Confederacy before The Proclamation. Although slavery was abolished only in rebellious states, by the end of the war, it had influenced and prepared citizens to accept the idea and even advocate the abolition of slavery. Also, with the Proclamation African Americans were received into the army of U.S.
