What building was built earlier,  Manhattan Life Insurance Building or 15 Penn Plaza?
Manhattan Life Insurance Building The Manhattan Life Insurance Building was a 348 ft tower at 64-66 Broadway in New York City completed in 1894 to the designs of the architects of Kimball & Thompson and slightly extended north in 1904 making its new address 64-70 Broadway. It was the first skyscraper to pass 100 m in Manhattan.
Prudence Building The Prudence Building, or Prudence Bonds Building, was a fourteen-story edifice at the southeast corner of Madison Avenue and 43rd Street, in Manhattan, in the U.S. state of New York. It was the headquarters of the Prudence Bonds Corporation, opening in October 1923. Stores on the street level were leased to