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TIL General George Thomas was arguably better than both Robert E Lee and Ulysses S Grant. He never lost a battle and once completely destroyed a confederate army, earning him the nickname "sledgehammer". History has forgotten because he was too modest and always downplayed his own accomplishments

RGE8 TIL “Confirmation bias” is the tendency to search for, interpret, favor, and recall information in a way that confirms one’s preexisting beliefs or hypotheses while giving disproportionately less consideration to alternative possibilities.
R7wVa TIL Huge warthog getting "spa treatment" from mongooses in win-win symbiotic relationship called mutualism. Warthogs living in Uganda have learned to rid themselves of annoying ticks by seeking out the grooming services of some accommodating neighbors: a group of mongooses looking for snacks.
OomYY TIL that Helen Keller learned how to talk through the work of her teacher, Anne Sullivan. Sullivan taught her by placing one of Anne’s fingers over Sullivan’s throat, one over her mouth, and one on her nose so that she could feel the vibrations of all the different letters and replicate them herself
6EJv7 TIL that Abraham Lincoln gave great prominence to hats as they would protect him from bad weather, help store important documents and made his height advantage more prominent
KYgEE TIL that there is a phenomena called phantom vibration syndrome. It is the perception that one's mobile phone is vibrating/ringing even when it is not.