The Helium Centennial Time Columns Monument in Amarillo, Texas, contains four separate time capsules, the last of which is intended to be opened 1000 years after the Time Columns Monument was locked in 1968.
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In the song Year 3000, not much has changed but people are said to "live under water".
20th Century Fox | 30th United States Congress | American Association (19th century) | American Association (20th century) | Century Park | Century of Progress | Century Media Records | Century 21 | Baltimore Orioles (19th century) | 20th Century Boy | End of the Century: The Story of the Ramones | Century Park (ETS) | Century City | Century Association | century | 30th Street Station | 30th parallel north | Zenon: Girl of the 21st Century (film) | Zenon: Girl of the 21st Century | Roman Republic (19th century) | Car of the Century | Wang Wei (8th-century poet) | Lipstick Traces: A Secret History of the 20th Century | Irish Volunteers (18th century) | 30th parallel south | 20th Century Fox Home Entertainment | Transportation Equity Act for the 21st Century | The Century Club | Team of the Century | Songs from the Last Century |
In its last appearance before the Crisis on Infinite Earths, Barry used it to relocate to the 30th Century to be reunited with his wife, Iris West.
Inertron is frequently described as indestructible and impenetrable; however, this only applies to regular humans, lesser superhumans and 30th century known technology, as, on some occasions, Superboy and Mon-El could break an inertron container by using all their strength.
The fiftieth Doctor Who Virgin New Adventures novel Happy Endings by Paul Cornell features a Polari-speaking Silurian musical duo from the 30th century called Jacquilian and Sanki.