Biden's inauguration: Everything you need to know

The United States on Wednesday will once again transfer power from one president to another, as it has done since 1797 when George Washington left office to be replaced by the second American president, John Adams. 

Vice President-elect Kamala Harris, meanwhile, will be the 49th vice president of the United States. Her swearing-in will represent the breaking of the second-highest glass ceiling in American society, as she will be the first woman to ever be the vice president. Harris was previously the attorney general of California and the junior U.S. senator from that state. Harris will also be the first Black vice president and the first South Asian vice president, though she will not be the first vice president of color. Republican Charles Curtis -- who served under President Herbert Hoover -- was the first. Curtis was a member of the Native American Kaw Nation.