1849
Voters ratified California's new state constitution, paving the way for statehood a year later.
1850
As part of the bargains established by the Compromise of 1850, California entered the Union as the 31st state, free of slavery.
1850
John C. Frémont and William M. Gwin, both of San Francisco, presented their credentials and took the oath of office, becoming California's first two United States senators. The senators then drew lots to determine their class assignments. Senator Frémont drew Class 1, with a term to expire on March 3, 1851. Senator Gwin drew Class 3, with a term to expire March 3, 1855.
1855
John B. Weller of San Francisco became chairman of the Senate Committee on Military Affairs (now the Armed Services Committee), a position he held from 1855 to 1857.
1856
Former senator John C. Frémont was the first ever presidential nominee of the new Republican Party. An unsuccessful candidate, Frémont ran on a ticket with former New Jersey senator William L. Dayton. They lost to another pair of former senators, Pennsylvania's James Buchanan and Kentucky's John C. Breckinridge.
1863
The Senate confirmed the nomination of Stephen J. Field as the 34th associate justice of the Supreme Court.
1868
The Senate elected George C. Gorham as secretary of the Senate. Born in New York, Gorham moved to California amidst the 1849 gold rush. Quickly tiring of the hunt for gold, he became law clerk to Stephen J. Field, edited newspapers, and became an owner of the Central Pacific Railroad. Gorham became secretary of the Senate with assistance from California senator John Conness.
1871
Cornelius Cole of San Francisco became chairman of the Senate Committee on Appropriations, a position he held from 1871 to 1873.
1878
Albert Bierstadt's painting, "Entrance into Monterey," was purchased for the Capitol art collection. It now hangs in the House wing, west corridor, by the members' private staircase.
1883
John F. Miller of San Francisco became chairman of the Senate Committee on Foreign Relations, a position he held from 1883 to 1886.
1898
The Senate confirmed the nomination of Joseph McKenna of Suisun as the 50th associate justice of the Supreme Court.
1905
Senator George C. Perkins of Oakland read George Washington's 1796 Farewell Address on the floor of the Senate Chamber, an annual tradition dating to 1862.
1912
California governor and future senator Hiram W. Johnson of San Francisco ran unsuccessfully for vice president of the United States on the Progressive ticket with Theodore Roosevelt, losing the election to Woodrow Wilson and Thomas R. Marshall.
1915
James D. Phelan of San Francisco became California's first directly elected senator following the adoption of the Seventeenth Amendment in 1913.
1914
The Senate confirmed the nomination of William G. McAdoo of Los Angeles as secretary of treasury. McAdoo served in the administration of President Woodrow Wilson from March 6, 1913, to December 15, 1918. In 1932 he was elected to the U.S. Senate and served from March 4, 1933, to November 8, 1938.
1917
Senator John D. Works of Los Angeles read George Washington's 1796 Farewell Address on the floor of the Senate Chamber, an annual tradition dating to 1862.
1930
Hiram W. Johnson became chairman of the Senate Committee on Commerce (today's Committee on Commerce, Science, and Transportation), a position he held from 1930 to 1933.
1931
Congress officially unveiled statues of Thomas Starr King by artist Alexander Doyle and Father Junipero Serra by artist Ettore Cadorin, as California's contributions to the National Statuary Hall Collection. King's statue was replaced in 2009 by a statue of Ronald Reagan.
1945
Senator Hiram W. Johnson, California's longest-serving senator, died while in office. Johnson had been a senator since March 4, 1917.
1950
Richard M. Nixon of Whittier began service in the United States Senate. Elected to the Senate on November 7, 1950, for the term beginning January 3, 1951, Nixon was subsequently appointed to fill the vacancy caused by the resignation of Sheridan Downey and served from December 1, 1950, until his resignation January 1, 1953, to become vice president.
1952
Senator Richard M. Nixon was elected vice president of the United States on the Republican ticket with Dwight E. Eisenhower. Nixon and Eisenhower were reelected in 1956, and Nixon served as vice president until January 20, 1961.
1953
Senator William F. Knowland of Piedmont became chairman of the Republican Policy Committee, and served in that position until August 4, 1953, when he became Republican floor leader.
1953
Senator William F. Knowland was elected Republican floor leader at age 45, becoming the youngest Senate majority leader in Senate history. He served as Republican leader until his retirement from the Senate on January 3, 1959.
1954
The Senate confirmed the nomination of California native Earl Warren as the 14th chief justice of the United States. Warren had received a recess appointment from President Dwight D. Eisenhower on October 2, 1953.
1959
Senator Thomas H. Kuchel of Anaheim was elected Republican whip (or assistant floor leader). He served as whip for 10 years, until his retirement from the Senate on January 3, 1969.
1959
Future senator Pierre E. G. Salinger of San Francisco joined the staff of Massachusetts senator John F. Kennedy. In 1960 Salinger became Kennedy's press officer during the presidential campaign. When Kennedy became president in January of 1961, Salinger became his press secretary. Salinger remained in the White House after Kennedy's death in 1963 and continued to serve as President Lyndon B. Johnson's press secretary until March 19, 1964. He subsequently was appointed to the Senate to fill the vacancy caused by the death of Clair Engle, and served from August 4, 1964, to December 31, 1964.
1964
The Senate voted to seat Pierre E. G. Salinger. Appointed on August 4, 1964, to fill the seat left vacant when Senator Clair Engle died, Salinger presented his credentials to the Senate on August 5. Immediately, objections arose as to the legality of Salinger's appointment. California state election law required that any person appointed to the Senate had to have been a resident of the state for at least one year. Salinger, a former Virginia resident, had lived in California less than 12 months. Following an investigation, the Senate voted to seat Salinger, noting that he met the constitutional requirements for a U.S. senator, and that only the U.S. Senate, not state law, could be the judge of a member's qualifications.
1966
The Senate acquired a marble bust of former vice president Richard M. Nixon, for the Senate's Vice Presidential Bust Collection. The marble bust was carved by Gualberto Rocchi.
1968
Former senator and vice president Richard M. Nixon was elected as the 37th president of the United States. Nixon was sworn into office on January 20, 1969, was reelected in 1972, and remained in office until his resignation on August 9, 1974.
1977
Senator Alan M. Cranston of Los Angeles was elected Democratic whip, serving until 1991.
1977
Alan M. Cranston became chairman of the Senate Committee on Veterans' Affairs, a position he held from 1977 to 1981, and again from 1987 to 1993.
1977
Senator Samuel I. Hayakawa of Mill Valley read George Washington's 1796 Farewell Address on the floor of the Senate Chamber, an annual tradition dating to 1862.
1982
Senator Samuel I. Hayakawa received the Golden Gavel Award for presiding over the Senate for 100 hours in a single session.
1988
The Senate confirmed the nomination of Anthony M. Kennedy of Sacramento as the 93rd associate justice of the Supreme Court.
1992
Dianne Feinstein of San Francisco was elected in a special election to fill the seat left vacant by the resignation of Pete Wilson of San Diego. She took the oath of office on November 10, 1992, becoming the first woman to represent California in the U.S. Senate.
1993
Barbara Boxer of Greenbrae became a U.S. senator. Joining sitting senator Dianne Feinstein, Boxer's election marked the first time that a state was represented simultaneously by two women in the U.S. Senate.
1994
John C. Frémont, one of California's first two senators, was featured on a U.S. postage stamp, one of the "Great Americans" series.
1995
The Senate elected Sheila P. Burke, a native of San Francisco, as the secretary of the Senate. Burke had served as chief of staff to Senate Majority Leader Robert J. Dole from 1986 until her election as one of the Senate's officers.
2007
Dianne Feinstein of San Francisco became the first woman to chair the Senate Committee on Rules and Administration. She held this position until 2009, when she became the first woman to chair the Senate Select Committee on Intelligence.
2007
Barbara Boxer of Greenbrae became the first woman to chair the Senate Committee on Environment and Public Works.
