1893: Metropolitan Park Commission is established by the MA State Legislature.
1899: Charles River Speedway Division opens in the Brighton section of Boston.
The Revere Beach Division Station opens in Revere, MA.
1904: The Riverside Division opens in the Auburndale section of Newton, MA on the banks of the Charles River. The station is equipped with canoes, row boats for patrol.
1905: The Metropolitan Park Commission purchases 20 motorcycles for patrol.
1910: Charles River Lower Basin Division established.
Charles River Speedway Division becomes the Charles River Upper Basin.
1912:
1913:
1915: An addition is made to the Lower Basin Division station for a mortuary for the keeping of bodies recovered from waters of the Charles River
1917:
1918:
1919: The Beaver Brook Division becomes part of the Upper Basin Division.
The Stony Brook Division becomes part of the Blue Hills Division.
The Boston Police Strike of 1919 comes in Boston and the Governor of Massachusetts requests the assistance of the Metropolitan Police. 75 officers are requested. Several officers join their brother officers in Boston and go on strike.
1922: Office of Metropolitan Police Supt. is established. The first Supt. appointed is - from the - Division.
1930: The MDC centralizes the location of its adminstrative offices to 20 Somerset Street in Boston.
1937: The Work Progress Administration in cooperation with the MDC design, build and test a "high frequency" two way radio system for police communications.
1938: Work begins on the Quabbin Reservoir Administration Building. Included in this structure is a hangar for sea planes for police patrol of the Quabbin Reservoir Watershed. The Hurricane of 1938 leaves a lot of destruction in its path. As the Division of State Police are dealing with patrol and recovery efforts statewide, the Governor of Massachusetts calls upon the MDC for several Metropolitan Police Officers to be assigned temporarily to State Police Barracks in -.
1939:
1940: Quabbin Reservoir is completed and the Quabbin District Station opens. The seaplane is never purchased, so patrols are done via police cruiser and police boats.
1941:
1942:
1950:
1954: The Central Artery Highway in Boston Opens.
1956: Massachusetts legislature votes on a bill to consolidate the MDC Police with the Boston Police Department and several other cities and towns into one large MDC Police. The bill is defeated.
MDC publicly discuses a plan to reorganize itself and its Police into 3 Divisions; a North Division, Central Division and a South Division.
1957: Metropolitan Police join the Division of State Police, the Registry Police, Boston Police and several cities and towns in Eastern Massachusetts by setting up a discrete radio channel to communicate between various law enforcement agencies immediately instead of by telephone. The carrier frequency is 158.970 MHz and it was know as "Intercity".
1959: Southeast Expressway opens in Boston and Quincy.
1963: The Middlesex Fells Division opens at Wellington Circle in Medford, MA replacing the original station that was demolished in the Middlesex Fells Reservation during the construction of Interstate 93 through Medford. The new Metropolitan Police Academy is also located in this facility.
1964:
1965:
1968: The new Nahant Beach Substation opens at the new Ward Bathhouse, replacing the orginal 1899 bathhouse and police station. The Ward Bathhouse is named in honor of Metropolitan Police Officer Ward who passed away from an illness.
1970:
1971: Metropolitan Police Class # graduates from the Academy.
1972: Metropolitan Police Class #, graduates from the Academy.
The Metropolitan Police change their livery to Kelley green and white for their department vehicles.
1973:
1974: Metropolitan Police, along with the Division of State Police and the Boston Police Department participate in security for Phase 1 of Federal Court ordered public school intergration in the City of Boston.
1975: Change in state law causes the end of police ambulettes. Phase 2 and year 2 of school intergration in Boston continues.
The Metropolitan Police adds a repeater to its main communications channel to provide improved communications between Met Control and mobile units in patrol cars, motorcycles and patrol boats.
1976: Record crowds of -, gather at the Charles River Esplanade on the 4th of July undue the watch of the Metropolitan Police.
1977: Wachusett Division station is established at the Wachusett Dam Power Building in Clinton, MA.
1978: Metropolitan Police are called upon to assist with evacuations and recovery from the "Blizzard of '78".
1979: Papal Visit of Pope John Paul II to Boston and the Metropolitan Police assist alongside Boston Police and the Division of State Police
1980: '80 Tall Ships comes to Boston and Metropolitan Police participate in security for the event.
1981:
1982:
1983:
1984:
1985:
1986:
1987:
1988:
1989:
1990: Supt. William Bratton leaves to lead the New York City Transit Police.
Bicycle patrols, once part of the Metropolitan Police in the late 19th and early 20th Century are re-established.
1991:
1992: On July 1st, the Massachusetts Metropolitan Police, The Massachusetts Capitol Police, The Registry of Motor Vehicles Police and the Massachusetts Department of Public Safety Division of State Police are consolidated into the new Massachusetts Department of State Police. The uniform and cruiser design of the Division of State Police is adopted for the new statewide law enforcement agency.
The Metropolitan Police end their 99 year journey of service to the citizens of Massachusetts.
The Metropolitan District Commission's communication system is adopted by the Department of State Police with a plan to expand it statewide.
2016: The Massachusetts State Police give formal recognition to 101 year-old, the oldest surviving former member of the Metropolitan Police.