After four years as city schools chancellor, Carmen Fariña retired from her post Friday.
Mayor Bill de Blasio sent her off with a brief ceremony as she left the Tweed Courthouse for last time as chancellor.
The mayor also bestowed her with a special honor.
"At the end, it says, 'I, Bill de Blasio, Mayor of NYC, do hereby proclaim, Friday, March 30, 2018 in the city of New York as Carmen Farina Day,'" de Blasio said.
Fariña has spent 52 years working for the city's school system.
As chancellor, test scores and graduation rates slowly improved, and she helped oversee the implementation of universal pre-k.
Fariña also did away with the letter grades schools received under the Bloomberg administration.
On Monday, Richard Carranza will take over as chancellor. The former superintendent of Houston schools got the job after de Blasio's initial selection, Alberto Carvalho from Miami, suddenly backed out of the position.