Summarize how the powerful king of Mali, Mansa Mūsā, both enhanced the kingdom of Mali, as well as hindered its economy. State whether his contributions outweigh any negative aspects of his reign.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

this is not a question its simply asking you to read and write a few sentences and   the question on the bottom its fairly easy, you can do this!

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

i see, would you mind putting it as one?