Thursday, Feb. 19, marks the 50th day of Zohran Mamdani’s term as mayor. amNewYork is following Mamdani around his first 100 days in office as we closely track his progress on fulfilling campaign promises, appointing key leaders to government posts, and managing the city’s finances. Here’s a summary of what the mayor did.

Mayor Zohran Mamdani and City Council Speaker Julie Menin appeared side by side Thursday morning to announce the opening of a long-delayed early childhood education center on the Upper East Side, offering a moment of alignment amid deeper, growing divisions over the city budget and proposed protest restriction leglislation.