6
About 500 years ago, people improved their
clocks. They used springs to power the clocks. The
It chall
LE300E
その
を動かす
てきた
springs were small and light. So people could move
さいでには
をはこぶ
TARTINE
the clocks easily. Eventually, people began to carry
人々
を始めた
もっていく
うでどけい
watches.