"National Create A Vacuum Day on February 4th explores spaces void of matter."
https://www.nationaldaycalendar.com/national-day/national-create-a-vacuum-day-february-4?utm_source=Iterable&utm_medium=email&utm_campaign=8875778&hashed_email=64a20f24338333901e4cb7afc40a3cfae56c6770df59fc13cf25a5ce36d78b01&lctg=188476845
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