Brooklyn Public Library Central Building opens. At 60 stories, Woolworth Building tops Singer Building as world's tallest. First crossword puzzle, in The New York Sun. Grand Central Terminal, Ebbets Field open. 1914 First nickelodeon theater opens.
Police form bomb squad in response to anarchist threats.
American Society of Composers, Authors and Publishers formed. Lusitania departs on fatal voyage. 1916 Margaret Sanger opens first birth-control clinic, on Amboy St. in Brooklyn. Nathan Handwerker sets up Coney Island hot-dog stand. Nation's first zoning law passes.