1
00:00:00,000 --> 00:00:12,939
Great Wall

2
00:00:12,939 --> 00:00:16,940
It was used for defending.

3
00:00:16,940 --> 00:00:21,940
It is in China.

4
00:00:21,940 --> 00:00:31,940
It was built in the 5th century B.C.

5
00:00:31,940 --> 00:00:37,399
They bought it to defend themselves from invasions.

6
00:00:38,840 --> 00:00:40,939
Thank you. Bye-bye.