biologicperformance.com

M71gV TIL the world's oldest terrarium / sealed bottle ecosystem has been thriving since 1960. The 10-gallon bottle is like a mini Earth. It has only been opened once in 53 years to add a bit more water (in 1972). Otherwise it has been sealed without fresh water or air.
lovNr TIL in 1960 David Latimer planted a glass bottle (terrarium) with seed and he last watered it in 1972. It was sealed then and is still sustaining itself.