Question: In what year was the American politician born who started serving in the upper chamber of the Hawaii State Legislature on January 16, 2013?

Context paragraphs:
Les Ihara, Jr.: Les S. Ihara, Jr. (born April 19, 1951 in Honolulu, Hawaii) is an American politician and a Democratic member of the Hawaii Senate since January 16, 2013 representing District 10.  Ihara served consecutively from 1995 until 2013 in the District 9 and District 10 seats, having served consecutively in the Hawaii State Legislature from 1987 until 1995 in the Hawaii House of Representatives.

Brian Taniguchi: Brian T. Taniguchi (born November 7, 1951 in Honolulu, Hawaii) is an American politician and a Democratic member of the Hawaii Senate since January 16, 2013 representing District 10.  Taniguchi served consecutively from 1995 until 2013 in the District 10 and District 11 seats, having served consecutively in the Hawaii State Legislature from 1981 until 1995 in the Hawaii House of Representatives.

Michelle Kidani: Michelle N. Kidani (born September 30, 1948 in Honolulu, Hawaii) is an American politician and a Democratic member of the Hawaii Senate since January 16, 2013 representing District 18.  Kidani served consecutively from 2009 until 2013 in the District 17 seat.

Romeo Munoz Cachola: Romeo Munoz Cachola, commonly known as Romy Cachola, is a Democratic politician from the state of Hawaii.  An emigrant from the Philippines, Cachola became one of the first Filipino Americans to be elected to the Honolulu City Council since statehood in 1959.  He also was a member of the Hawaii State Legislature and served in the Hawaii State House of Representatives from 1984 to 1992.

List of Presidents of the Hawaii Senate: The President of the Hawaii Senate is the presiding officer of the upper chamber of the Hawaii Territorial and Hawaii State Legislature.

Oregon Territorial Legislature: Oregon’s Territorial Legislature was a bicameral legislative body created by the United States Congress in 1848 as the legislative branch of the government of the Oregon Territory.  The upper chamber Council and lower chamber House of Representatives first met in July 1849; they served as the region's legislative body until Oregon became a state in February 1859, when they were replaced by the bicameral Oregon State Legislature.

Hawaii State Legislature: The Hawaii State Legislature is the state legislature of the U.S. state of Hawaii.  The state legislature is a bicameral body consisting of a lower house, the Hawaii State House of Representatives, with 51 representatives, and an upper house, the 25-member Hawaii State Senate.  There are a total of 76 representatives in the legislature, each representing single member districts across the islands.  The powers of the legislature are granted under Article III of the Constitution of Hawaii.

Hawaii Senate: The Hawaiʻi State Senate is the upper chamber of the Hawaii State Legislature.  The senate consists of twenty-five members elected from an equal number of constituent districts across the islands.  The senate is led by the President of the Senate, elected from the membership of the body, currently Ron Kouchi.  The forerunner of the Hawaii State Senate during the government of the Kingdom of Hawaiʻ i was the House of Nobles originated in 1840.  In 1894 the Constitution of the Republic of Hawaii renamed the upper house the present senate.  Senators are elected to four-year terms and are not subject to term limits.  Like most state legislatures in the United States, the Hawaii State Senate is a part-time body and senators often have active careers outside government.  The lower chamber of the legislature is the Hawaiʻi House of Representatives.  The membership of the Senate also elects additional officers to include the Senate Vice President, Senate Chief Clerk, Assistant Chief Clerk, Senate Sergeant at Arms and Assistant Sergeant at Arms.

Josh Green (politician): Joshua B. "Josh" Green (born February 11, 1970) is an American politician and a Democratic member of the Hawaii Senate since January 16, 2013 representing District 3.  Green served consecutively in the Hawaii State Legislature from 2005 until 2009 in the Hawaii House of Representatives.  He was raised in Pittsburgh, Pennsylvania.  He received his undergraduate degree at Swarthmore College and in 1997 received his medical degree from Penn State University.

Rosalyn Baker: Rosalyn 'Roz' H. Baker (born September 20, 1946 in El Campo, Texas) is an American politician and a Democratic member of the Hawaii Senate since January 16, 2013 representing District 6.  Baker served consecutively from 2003 until 2013 in the District 5 seat, and previously served from 1993 until 1999, having served consecutively in the Hawaii State Legislature from 1989 until 1993 in the Hawaii House of Representatives.  Baker was appointed to the Senate in 1993 and currently serves as the Senate Chair of Commerce and Consumer Protection.

Supporting paragraphs: Michelle Kidani Hawaii Senate
Answer: 1948