In 1914, to commemorate the New Netherland Company’s charter tricentennial, a time capsule was created with directions to be opened in 1974. The time capsule was actually opened by the New-York Historical Society in 2014. Included in the time capsule were papers and artifacts specific to the time the capsule was created, including a Year Book of the Holland Society!
Interested in learning more its contents and its opening? Read more at this link.