== In the earliest days such obstacles had to be walked around. When boats came into use, they were used to ferry people and trade. The earliest bridges were probably built of ropes and were only capable of short spans and light loads. == Fallen trees or emplaced logs.
they used wood from trees and they made the bridges out of wood amd so cars, trains, boats can go on it
ropes and wood
It depends on the civilization. Early American Native Americans wove baskets and some made clay pottery. In Ancient China the use of clay pottery was rampant throughout the society, so did the Greeks and Romans make clay pottery. The Egyptians also had clay pottery, baskets, and used metal to create cups, plates, and other items. Clay is rampant throughout the world and early people learned to use it very early.
Suspension bridges look a little bit likecable-stayed bridges.
Capillaries are bridges between the arterys and veins
Placed before a noun, early is usually an adjective. E.g. The early bird gets the worm. An early diagnosis can help in treating a disease. He was an early advocate of women's rights.
A bridge is a structure built to span a road, a body of water , or other physical obstacle, for the purpose of providing passage over the obstacle. Designs of bridges vary depending on the function of the bridge and the nature of the terrain where the bridge is constructed. But since the world has been making new types of bridges, more have been proven to be safer and to be more logical to use. There are even retracting bridges that are used for curfews.
maya
noah
im not really sure about that :(
I think it was The Yellow River. I think!
Early theater had its beginnings in Greek civilization.
Bridges built in the 1800s were typically constructed of wood or stone. Some bridges were also starting to be constructed of steel in the early 1800s.
they used rocks and mud and put them into a half circle from one side to the other.
both developed paper
drinking water sewage crops soil
One of them were they were the first to make and use coins.
The Mayan civilization
To answer a question we need a who, where, when, what, why, or how. Your question doesn’t give us one of those.