U.S. Congresswoman Marilyn Strickland representing Washington's Tenth district, who is of Korean descent, was sworn into the House of Representatives wearing the Korean traditional hanbok.

Strickland, whose Korean name is Sun-ja, wore the red and blue hanbok at the opening of the 117th U.S. Congress on Sunday.

On her Twitter account, the Democrat said wearing the Korean dress holds personal significance, as she hails from both a Korean and African-American background.

Strickland said wearing hanbok symbolizes the cultural asset she has inherited, is in honor of her mother, and displays the importance of diversity in the U.S., Washington state and in Congress.

Strickland, along with Republican Rep. Michelle Steel of California's 48th district, and Rep. Young Kim of California's 39th district, are the first Korean-American women to have been elected to the U.S. Congress.

A fourth Korean-American is Democrat Rep. Andy Kim of New Jersey's Third district.