The first bicycle appeared in Germany in 1817.
Karl Drais built it from wood.
It had two wheels but no pedals!
People sat on it and pushed against the ground with their feet.
In the 1860s, inventors in France added pedals to the front wheel.
Later, some bicycles had a huge front wheel and a tiny back wheel.
They were faster, but they were also more dangerous.
Riders often fell off.
In the 1880s, a new design called the safety bicycle arrived.
Its two wheels were about the same size, and it had a chain.
It was safer and easier to ride than the old bicycles.
Today's bicycles look similar.