5 facts about the great wall

1. The official length is 21,196.18 km (13,170.7 mi) —; (6+ dynasties' worth)

2. Most of today's relics are the Ming Dynasty Great Wall: length 8,851 km (5,500 mi).

3. The Great Wall is more than 2,300 years old.

4. The Ming Great Wall crosses 9 provinces and municipalities: Liaoning, Hebei, Tianjin, Beijing, Inner Mongolia, Shanxi, Shaanxi, Ningxia, Gansu.

5. Badaling is the most visited section (63,000,000 visitors in 2001). And in the first week of May and October, the visitor flow can be up to 70,000 per day.

porter is writing economic history because he is focusing on the cost of developing vaccines.

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,