The Mathematical Association of America (MAA) is a professional society that focuses on mathematics accessible at the undergraduate level. Members include university, college, and high school teachers; graduate and undergraduate students; pure and applied mathematicians; computer scientists; statisticians; and many others in academia, government, business, and industry.
The MAA was founded in 1915 and is headquartered at 1529 18th Street, Northwest in the Dupont Circle neighborhood of Washington, D.C. The organization publishes mathematics journals and books, including the American Mathematical Monthly (established in 1894 by Benjamin Finkel), the most widely read mathematics journal in the world according to records on JSTOR.
https://en.wikipedia.org/wiki/Mathematical_Association_of_America