On Feb. 19, 1963, more than 100 students and members of the Civic Interest Group were arrested during a demonstration against segregation at the Northwood Theater. Above, a man blocks the entrance to the theater as protesters try to go inside. Those arrested were charged with trespassing and disorderly conduct, but were released a few days later without bail when the theater announced it would admit African Americans. Northwood’s first desegregated audience watched a matinee of Disney’s “In Search of the Castaways.” (Baltimore Sun files)

Feb. 19, 1878: Thomas Edison received a patent for his phonograph.

Feb. 19, 1979: Mayor William Donald Schaefer imposed a 7 p.m. curfew on the city after a 22-inch snowstorm buried Baltimore and led to looting.

Feb. 20, 1895: Frederick Douglass passed away at his home in Anacostia. He was born into slavery in Talbot County, but later escaped and became a notable politician and leader of the abolitionist movement. Above, Governor McKeldin shakes hands with Morgan State University student Mary Guilbert at a 1956 dedication ceremony in which a statue of Douglass was unveiled.

Feb. 20, 1792: President George Washington signed an act creating the U.S. Post Office.

Feb. 20, 1986: Mayor Schaefer honored Oprah Winfrey as a “Hometown Celebrity” at the 20th annual Baltimore’s Best Awards held at Joseph Meyerhoff Symphony Hall. She was nominated for an Academy Award for her role in “The Color Purple.” (Anjelica Huston later took home the Oscar for her performance in “Prizzi’s Honor.”)

Feb. 21, 1974: Brooks Robinson signed his 20th Orioles contract. His salary was an estimated $115,000, making him the second-highest paid Orioles player at the time. Also in 1974, Tom Seaver became the highest paid pitcher in baseball history after signing with the New York Mets for $172,500.

Feb. 21, 1838: American inventor Samuel Morse gave his first public demonstration of the telegraph.

Feb. 21, 1947: Edwin Land publicly demonstrated his Polaroid Land camera, which could produce a black-and-white photograph in 60 seconds.

Feb. 22, 1732: The first president of the United States, George Washington, was born in Westmoreland County in the Virginia Colony.

Feb. 22, 1862: Jefferson Davis, already the provisional president of the Confederacy, was inaugurated for a six-year term following his election in Nov. 1861.

Feb. 22, 1924: President Calvin Coolidge delivered the first radio broadcast from the White House as he addressed the country over 42 stations.

Feb. 22, 1935: It became illegal for airplanes to fly over the White House.

Feb. 23, 1836: The siege of the Alamo began in San Antonio, Texas.

Feb. 23, 1903: President Theodore Roosevelt signed an agreement with Cuba to lease the area around Guantanamo Bay to the United States.

Feb. 23, 1945: During World War II, U.S. Marines on Iwo Jima captured Mount Suribachi, where they raised a pair of American flags (the second flag-raising was captured in the iconic Associated Press photograph.)

Feb. 24, 1936: Albert C. Ritchie died at age 59. Ritchie is Maryland’s longest-serving governor to date, remaining in office from 1920 to 1935. Many landmarks are dedicated in his name, including the Ritchie Coliseum at University of Maryland, College Park and Governor Ritchie Highway in Anne Arundel County.

Feb. 24, 1582: Pope Gregory XIII issued a papal bull, or edict, outlining his calendar reforms. (The Gregorian calendar is the calendar in general use today.)

Feb. 24, 1821: Mexico declared its independence from Spain.

Feb. 24, 1981: Buckingham Palace announced the engagement of Britain’s Prince Charles to Lady Diana Spencer.

Feb. 25, 1947: Mayor McKeldin held a family meeting to determine whether he would seek re-election. Mrs. McKeldin, 11-year-old Teddy and 7-year-old Clare voted unanimously against him entering the race. McKeldin did not run that year, but in 1951 he became governor of Maryland after defeating William Preston Lane Jr. McKeldin served as governor until 1959, and he became the last Republican to be elected mayor of Baltimore when he won his campaign for a second and final term as mayor in 1963.

Feb. 25, 1971: Three Maryland lacrosse players were elected to the National Lacrosse Hall of Fame – Ivan Marty of University of Maryland, Fritz Stude of Johns Hopkins University and Thomas Truxton of the Naval Academy.

Feb. 25, 1987: Local developers and the Charles Street Management Corp. started a six-week media blitz aimed at convincing those in the Baltimore area to live downtown rather than in the suburbs. The 55-second radio spots featured jazz singer Ethel Ennis.

Compiled by Lori Sears and Paul McCardell.