Which national event prompted the creation of the department of homeland security event promoted the creation of the department of homeland security?

Question:

Which national event prompted the creation of the department of homeland security event promoted the creation of the Department of Homeland Security?

The answer is the Sept. 11 terrorist attacks otherwise known as 9/11.

Evidence:

Created in the aftermath of the Sept. 11 terrorist attacks, DHS has largely focused on federal preparations to deal with terrorism while trying to manage other duties, including border security, customs and emergency management.

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the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.