Yet over 60 years earlier, a member of Newton's social circles at Trinity, one J. M. F. Wright, reported this same story (from an unknown source) in his 1827 memoir, adding: "Whether this account be true or false, indisputably true is it that there are in the door to this day two plugged holes of the proper dimensions for the respective egresses of cat and kitten.
Yet over 60 years earlier, a member of Newton’s social circles at Trinity, one J. M. F. Wright, reported this same story (from an unknown source) in his 1827 memoir, adding: «Whether this account be true or false, indisputably true is it that there are in the door to this day two plugged holes of the proper dimensions for the respective egresses of cat and kitten.»Modern cat flaps are popular in some countries even in urban environments, particularly the United Kingdom where it is estimated that about 74 % of cats have access to the outdoors.