(Washington, DC) — Ketanji Brown Jackson will be sworn-in as a Supreme Court justice at noon Eastern time tomorrow. That’ll coincide with the formal retirement of veteran Justice Stephen Breyer. He announced his intention to retire at the conclusion of the high court’s current term months ago. Jackson is a veteran federal judge who was confirmed by the Senate for the Supreme Court in April. She’ll become the first Black woman to ever serve on the nation’s highest court.

Jackson is 51 while Breyer is 83. He has served on the Supreme Court since 1994 after being nominated by President Bill Clinton. Breyer wrote a letter to President Biden, informing him of his formal resignation. He said it has been a “great honor to participate as a judge in the effort to maintain our Constitution and the rule of law.”