It is believed that Zhuge Liang, a prime minister during the Three Kingdoms Period, invented the Chinese wheelbarrow. However, evidence from brick carvings suggest that the wheelbarrow may have been invented earlier.
The Chinese wheelbarrow is designed so that the operator pushes, pulls or steers the wheelbarrow, which is filled with items too heavy to carry otherwise. Most of the weight is centered on the single large wheel to relieve stress on the operator. During the fifth century in China, people tried to power wheelbarrows by attaching wind-powered devices. After its invention, the wheelbarrow was used throughout China and also influenced other parts of the world, such as Europe. Before the 11th or 12th century, wheelbarrows were unknown in Europe.