1. The Pennsylvania Turnpike opened on May 16, 1940, becoming the first long-distance, limited-access superhighway in the United States. The toll road stretches 360 miles across Pennsylvania, connecting the east and west sides of the state.

2. Philadelphia opened its first zoo on May 16, 1874. The zoo is home to over 1,300 animals, including rare and endangered species such as giant otters, red pandas, and Amur tigers.

3. On May 16, 1907, Hersheypark, a family-friendly amusement park, first opened in Derry Township, Pennsylvania. Today, the park spans 121 acres and features over 70 rides and attractions, including 15 roller coasters.

4. The United States Indian Industrial School in Carlisle, Pennsylvania, closed on May 16, 1918. The school was established in 1879 under the direction of Captain Richard Henry Pratt, and aimed to "civilize" Native American children by teaching them English and American customs.

5. Blue Bell Creameries, a popular ice cream company, was founded in Brenham, Texas on May 16, 1907 by farmers E.F. Kruse and his son, Ed. The company later opened a branch in Sinking Spring, Pennsylvania, and today produces over 250 ice cream flavors.