Tulsa race massacre (also known as the Tulsa race riot or the Black Wall Street massacre), what was it and its significance

It was a racially induced massacre where White residents killed black residents and destroyed their properties

Explanation:

The Tulsa race was riot that happened in the year 1921 between the months of may and June. White residents after receiving weapons from officials attacked the residential homes of black people, destroyed their properties and their businesses. This took place in Oklahoma Tulsa. This event was a racially induced violence that left lots of people without homes and hundreds of others killed

What led to this riot was an elevator incidence that involved a black boy and a female white elevator operator.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

yes.

explanation:

because it let the japanese know who had the upper hand in the war.