Doors Access

: Invented in the 1st century AD by Heron of Alexandria , this early steam-powered mechanism used heat from a temple fire to trigger a series of pulleys that opened the doors.

: Discovered in Zurich, Switzerland, archaeologists found a wooden door estimated to be over 5,100 years old . : Invented in the 1st century AD by

: Many Irish doors are brightly colored as a historic act of rebellion; after being ordered to paint their doors black in mourning for Queen Victoria, many residents painted theirs in vibrant shades instead. Common Materials & Modern Trends Best Entry Door Buying Guide - Consumer Reports : Invented in the 1st century AD by