It was their invention of concrete that helped their structures last.
The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.
They did not invent new materials, but they engineered ways to make them work better, like the arch.
An empire is not a person. Therefore, the Roman Empire did not invent anything. The Romans invented concrete. Roman concrete was different from modern concrete. It was more fluid and had to be layered by hand. It was just as strong.
Not to be picky, but I think you mean pencil. No, the Romans did not invent the lead pencil. In fact the "lead" in a pencil is not even lead at all. It is a material called graphite.
The Romans didn't invent the microscope
The Romans invented concrete to build taller and more stable structures than ever built before. They invented the arch which can hold up a building with a single keystone.
The Romans invented concrete.
The Romans invented concrete.
No
No.
no
No.