May 1962 · All Facts

May 1962
An underground coal mine fire has burned beneath Centralia, Pennsylvania, since May 1962.
SrcPennsylvania DEP

Next evidence →13th centuryPoland's Wieliczka and Bochnia Royal Salt Mines have been mined since the 13th century and contain chapels and statues carved from salt.

More packs

Dino
Body
Weird
Animals
Snakes
Insects
Ocean
Hidden Gems
Space
Mummies

More in Hidden Gems

not a single spanNo bridges cross the Amazon River — not a single span across this continental waterway, per Britannica.
SenetAncient Egyptians played Senet — a board of three rows of ten squares — from the Predynastic Period through at least the Late Period.
chinampasUNESCO lists Xochimilco's canals and chinampas (“floating gardens”) as the last major remnant of traditional pre-Hispanic lake agriculture in the Mexico City basin.
2011–2013China used more cement in 2011–2013 than the United States used in the entire 20th century (about 6.6 vs 4.4 billion tonnes) — figures drawn from USGS data.

Open full Hidden Gems pack →

← Back to evidence