Ten years ago when Hurricane Katrina ravaged the United States' Gulf Coast, causing massive destruction in New Orleans, Qatar and other Arab nations responded quickly to provide aid. Qatar pledged $100 million for humanitarian relief.

Qatar's ambassador to the United States is currently touring New Orleans, meeting with activists and checking how the emirate's money has made an impact. A special commemorative ceremony will be held on Friday, marking exactly 10 years since the tragedy struck. Here is a look at how Qatar's $100 million has made a difference.

Education

The largest chunk of the donation, $38.4 million, went toward education. Of that amount, $17.5 million went to Xavier University for scholarships and the construction of a new pharmacy school. More went for scholarship funds at Louisiana State, Loyola and Tulane universities. A Boys & Girls Club was also established.

Housing

Many homes were completely destroyed by Katrina, leaving thousands of residents displaced. Working with the NGOs, Qatar contributed $34.1 million to help rebuild and construct new homes. Habitat for Humanity alone received $22 million, covering one third of its costs during the rebuilding efforts. Funds also went to rebuild and restore 100 buildings in the New Orleans district of Treme/Lafitte.

Healthcare

Numerous hospitals in the region received funding through Qatar's donation. In total, $27.5 million was allocated for healthcare. Memorial Hospital in Gulfport, Mississippi received $10.8 million that allowed it to provide services to uninsured patients who otherwise wouldn't have been able to receive treatment.

This week the Qatar Katrina Fund is also launching a commemorative book and short film about the disaster, highlighting the ways the contribution made a positive impact. Both are available via the website here .

Saudi Arabia and the United Arab Emirates also contributed to Katrina relief efforts with smaller donations.