When Kyrsten Sinema and Martha McSally are officially sworn in Thursday, Arizona will find itself on a list that includes just over half of the states that have had female senators.
Sinema, who won the November election, will be sworn in first becoming Arizona's first female senator.
McSally, who was appointed to fill John McCain's seat after Jon Kyl resigned in December, will become Arizona's junior senator.
Sinema and McSally will bring Arizona's U.S. senator count up to 13 since it became a state in 1912.
Arizona past senators
Henry Fountain Ashurst (D): March 27, 1912 - Jan. 3, 1941
Marcus Smith (D): March 27, 1912 - March 3, 1921
Ralph H. Cameron (R): March 4, 1921 - March 3, 1927
Carl Hayden (D): March 4, 1927 - Jan. 3, 1969
Ernest McFarland (D): Jan. 3, 1941 - Jan. 3, 1953
Barry Goldwater (R): Jan. 3, 1953 - Jan. 3, 1965; Jan. 3, 1969 - Jan. 3, 1987
Paul Fannin (R): Jan. 3, 1965 - Jan. 3, 1977
Dennis DeConcini (D): Jan. 3, 1977 - Jan. 3, 1995
John McCain (R): Jan. 3, 1987 - Aug. 25, 2018
Jon Kyl (R): Jan. 3, 1995 - Jan. 3, 2013; Sept. 4, 2018 - Dec. 31, 2018
Jeff Flake (R): Jan. 3, 2013 - Jan. 3, 2019
It's been a man's game in Arizona
Every single Arizona senator before Sinema and McSally has been a man.
Despite the historic November election in Arizona, the state, among others, is way behind the times when it comes to breaking the glass ceiling for the U.S. Senate.
The first female elected to the Senate was Hattie Wyatt Caraway, a Democrat from Arkansas. She would also become the first woman to chair a Senate committee and to officially preside over the Senate.
The first woman to serve in the Senate was Rebecca Latimer Felton, a Democrat from Georgia, who was appointed to fill a vacancy in 1922. She served only 24 hours while the Senate was in session. Arizona's first Republican Senator started his term the year before.
The first were Democrats
In recent years, Arizona has been referred to as a Republican-dominated red state. But it didn't start out that way.
Arizona's first two senators, Henry Fountain Ashurst and Marcus Smith, were Democrats.
Ashurst moved to Arizona as a child in 1875 and grew up near present-day Flagstaff. He would go on to be a member of both the Territorial house of representatives and senate before becoming the district attorney of Coconino County.
Smith moved to Tombstone in 1881 where he practiced law. He was elected several times as a Democratic Delegate to the different Congresses before being elected as senator for Arizona.
Arizona has elected six Democrats. In November, Sinema became the first Democratic elected by Arizonans since Dennis DeConcini in 1976.
A Republican in 1921
Ralph Henry Cameron moved to what was the Territory of Arizona in 1883. A man with an interest in mining and stock raising, Cameron would become the locator and builder of what is known today as the Bright Angel Trail into the Grand Canyon.
Cameron was elected as a Republican Delegate to two Congresses before becoming the first Republican senator from Arizona. He took the seat previously held by Marcus Smith.
Following Cameron, a Republican didn't take office again until 1953. That senator has a name you might recognize: Barry Goldwater.
Goldwater became the first Arizona senator to serve two separate terms. Following a failed presidential run in 1964, Goldwater was elected again to represent Arizona in the U.S. Senate in 1968.
Goldwater, a household name in Arizona, is often "credited with sparking the resurgence of the American conservative political movement in the 1960s."
He was succeeded by another household name in Arizona: John McCain who served until his death in August.
Jon Kyl became the second Arizona senator to serve two separate terms when he was appointed to fill McCain's seat following his death.
McSally will become the seventh Republican to serve as U.S. senator from Arizona.
He served the longest
He's one of the biggest names in Arizona history. Carl Hayden was born in Hayden’s Ferry, which is now Tempe, in 1877.
Hayden served as sheriff of Maricopa County before he was elected as a Democrat to Congress several times. He was elected to the Senate, where he would eventually serve as President pro tempore, in 1926.
At the time of his retirement, Hayden's 56 consecutive years in Congress was a record.
Hayden is the sixth longest serving U.S. Senator in American history.
Both Henry Ashurst and Barry Goldwater are also among Arizona's longest-serving senators.
A long road to a full term
McSally was appointed by Arizona Gov. Doug Ducey to fill McCain's seat after Kyl announced he would resign his position Dec. 31, 2018.
She ran in the 2018 election and lost to Sinema. She'll have to run again in the next general election which is 2020. If she wins that election, she'll have to run again in 2022 when McCain's term is officially up.
If she wins both of those elections, hypothetically speaking, McSally would have had to run three separate times in nearly four years to serve a full Senate term.