What changed with the development of the wheel and axle?

The development of the wheel and axle revolutionized transportation and machinery by allowing for more efficient movement of goods and people. This innovation reduced friction and made it easier to carry heavy loads over distances, significantly enhancing trade and communication. Additionally, it facilitated the creation of complex machines, leading to advancements in agriculture, construction, and manufacturing. Overall, the wheel and axle played a crucial role in the progress of human civilization.