First Railroad Tunnel in the United States Was Completed in 1834

 Events
Mar 182025
 
Ghost tours at Staple Bend

Staple Bend Tunnel

First railroad tunnel in the United States was completed in 1834. Slightly over 900 feet in length, the Staple Bend Tunnel, located in Southwestern Pennsylvania, is rock-bored and lined in stone. Engineers needed three years to dig the tunnel. Today it is a National Historic Landmark. Children can learn more at: Staple Bend Tunnel.

Hard Hat Diving Suit Was Patented by Leonard Norcross in 1834

 Events
Jun 142025
 

Hard hat diving suit was patented by Leonard Norcross of Dixfield, Maine, in 1834. The suit became the first practical diving suit. A tube connected the helmet/suit with surface air. Norcross was so proud of his invention he named his son Submarinus. Children can watch a video of hard hat diving at: https://www.youtube.com/watch?v=CsCXlbURBU4.