Wall streets is the Mecca of world business. What is the background knowledge of Mecca?
Meaning of this?

Mecca is considered the spiritual center of Islam because it was where the Prophet Mohammed is said to have received his first revelations in the early 7th century.

Explanation:

dr. kings dream speech

explanation:

it was late in the day and hot, and after a long march and an afternoon of speeches about federal legislation, unemployment and racial and social justice, the rev. dr. martin luther king jr. finally stepped to the lectern, in front of the lincoln memorial, to address the crowd of 250,000 gathered on the national mall.