July 20, 1936: Barbara Ann Mikulski was born to a grocer of Polish decent in the East Baltimore neighborhood of Highlandtown. She spent her youth working in her father's grocery store, eventually delivering groceries when she was in school. She attended the Institute of Notre Dame, all-girl Catholic school.
1958: Graduated from Mount St. Agnes College with a bachelor's degree in sociology
1965: Graduated from UMD with a master's degree in social work. She began her career as a social worker in Baltimore, helping at-risk youth and educating seniors about Medicare.
Late 1960s: Mikulski became a community activist when she united Baltimore communities in a successful attempt to halt a 16-lane highway that was to be built through Baltimore's Inner Harbor and Fells Point neighborhood.
1970: Mikulski was elected to the Baltimore City Council, on which she served for five years. Garnered national attention for her remarks on “Ethnic Americans” at a conference at The Catholic University of America.
1974: Mikulski made her first attempt at U.S. Senate, but lost the election to Charles Mathias.
Jan. 3, 1977: Gained a seat in the U.S. House of Representatives in Md. third district. While in office, she served on the Merchant Marine & Fisheries Committee and Energy & Commerce Committee. Mikulski also advocated for legislation to protect children and supported the Equal Rights Amendment. Served for 10 years, until she became unable to run again.
Jan. 3, 1987: Became Democratic U.S. Senator for Md.; one of two female Senators serving first female Democratic Senator elected in her own right; first female Senator to be elected without having a father or husband who was politically highly ranked; began service on Senate Appropriations Committee
1988: Congress passed the Mikulski-penned Spousal Anti-Impoverishment Act to protect elderly citizens who had spouses in nursing homes.
1991: One of 11 Senators to vote against the use of force in Iraq
1992: Reelected to U.S. Senate
1994: Became secretary of Democratic Conference
1998: Reelected to U.S. Senate
2002: One of 11 Senators to vote against the use of force in Iraq
2004: Reelected to U.S. Senate
2009: Former President Bill Clinton revealed he recommended Mikulski as a running mate to Al Gore in 2000
Jan. 5, 2011: Became longest-serving female senator in U.S. history
March 17, 2012: Became the longest-serving woman in the history of the U.S. Congress
Dec. 20, 2012: Became first female and first Marylander to chair the Senate Appropriations Committee
June 3, 2013: Introduced the Child Care and Development Block Grant Act of 2013, providing block grants to states to help low-income parents provide child-care for their children
June 30, 2013: Mikulski and Cardin announced more than $1.3 million in general funding to help homeless veterans across Maryland
Sept. 29, 2013: Mikulski and Cardin announced nearly $15 million to strengthen cyber job training at Maryland community colleges
April 1, 2014: Introduced the Paycheck Fairness Act, placing the blame on employers because of their wage-discrimination, rather on the workers for sharing wage information
May 23, 2014: Mikulski and fellow Sen. Ben Cardin announced rural development funding to improve water infrastructure in Frederick CountyJuly 31, 2014: Mikulski, Cardin announced more than $700,000 national science foundation grant to enhance cyber security curriculum at Hagerstown Community College
Aug. 20, 2014: Mikulski and Cardin announced $4.7 million in rural development funding for water and waste disposal projects in western Maryland
Oct. 24, 2014: Mikulski announced with Cardin more than $8.2 million in federal funds to fight violence against women in Maryland
Nov. 20, 2014: Joined president Obama as he signed into law her bipartisan bill intended to help American families access safe, affordable, quality child care
Dec. 18, 2014: Announced $120 million to construct center for cyber security studies at United States Naval Academy in Annapolis
Jan. 23, 2015: Mikulski announced $1.2 in federal funding for Bowie State University to promote cyber-security education
Feb. 27, 2015: Mikulski and Cardin introduce the Thurgood Marshall's Elementary School's study act, which would honor Thurgood Marshall's alma mater as a national history site
March 2, 2015: Mikulski announced she would not be running for Senate again in 2017.
The Washington Post