Short answers, pulled from the story.
The NAACP was founded on the 12th of February 1909, by a group including African Americans W.E.B. Du Bois, Ida B. Wells, Archibald Grimké, Mary Church Terrell, and whites Henry Moskowitz, Mary White Ovington, William English Walling, Florence Kelley, Oswald Garrison Villard, and Charles Edward Russell.
The NAACP won the unanimous 1954 Supreme Court decision in Brown v. Board of Education that held state-sponsored segregation of public elementary schools unconstitutional.
James Weldon Johnson and Walter F. White served as executive secretary for the NAACP successively from 1920 to 1958, acting as chief operating officers during those decades.
The Internal Revenue Service investigated the NAACP in October 2004 based on chairman Julian Bond's speech at its 2004 Convention where he criticized President George W. Bush and other political figures.
On the 7th of June 2017, the NAACP issued a warning for African-American travelers to Missouri advising them to exercise extreme caution due to race-based crimes and discriminatory laws.