What building was built earlier,  Manhattan Life Insurance Building or 15 Penn Plaza?
15 Penn Plaza 15 Penn Plaza, also known as the Vornado Tower, is a proposed 68-story tower in the Midtown Manhattan section of New York City planned by Vornado Realty Trust. It would have 430 units and 2,050,000 square feet (190,451 m²) of floor space. The Hiller Group is the designer. Despite only having 68 floors, it would be just 10 m shorter than the Empire State Building, which has 102 floors.
United Charities Building The United Charities Building, also known as United Charities Building Complex, at 105 East 22nd Street or 287 Park Avenue South, in the Gramercy Park neighborhood of Manhattan, New York City, near the border of the Flatiron District, was built in 1893 by John Stewart Kennedy, a wealthy banker, for the Charity Organization Society.