where is the 1st man built island in the world{with sand}?

Answer 1

Dejima (or Deshima) is in Japan and was the first ever artificial island. It was at the bay of Nagasaki during the Edo period used as a shipping port, but only a few people were allowed on it.
Wikipedia has a good article on it.
If you want a more famous artificail island, try Ellis Island.

(The first guy needs to cite that he copied from a page in wikipedia, and still didn't get the right info)

Answer 2

Despite a popular image of modernity, artificial islands actually have a long history in many parts of the world, dating back to the crannogs of prehistoric Scotland and Ireland, the ceremonial centers of Nan Madol in Micronesia and the still extant floating islands of Lake Titicaca. The city of Tenochtitlan, the Aztec predecessor of Mexico City that was home to 250,000 people when the Spaniards arrived, stood on a small natural island in Lake Texcoco that was surrounded by countless artificial chinamitl islands.

Answer 3

this is a very difficult question but i guess that despite a popular image of modernity, artificial islands actually have a long history in many parts of the world, dating back to the crannogs of prehistoric Scotland and Ireland, the ceremonial centers of Nan Madol in Micronesia and the still extant floating islands of Lake Titicaca. The city of Tenochtitlan, the Aztec predecessor of Mexico City that was home to 250,000 people when the Spaniards arrived, stood on a small natural island in Lake Texcoco that was surrounded by countless artificial chinamitl islands.

Answer 4

Check out the San Blas Provence in the Republic of Panama. The Cuna Indians populate that area and live on 365 man-made islands, but they're made out of coral. They harvest the coral from the Caribbean Sea in dugout canoes and dump the coral on the edge of the existing islands. Those islands didn't exist until the Cunas created them maybe 12,000 years ago.