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9YQp7 TIL Oxford Deans called their Head Woodsman noticing decaying oak beams built in 1460 to see if there was any oak to replace them. He said "We've been waiting for you to ask about that" - A grove of oak trees was planted with the specific purpose of replacing them hundreds of years later.
R7M16 TIL Einstein was still working on his Theory of Everything while laying on his deathbed, in the last hours of his life, while fading in and out of consciousness.
9MGM TIL Only two species have domesticated other species: humans and ants