Obviously this is an important day to remember, but is it a tradition that the disciples started immediately after Christ's death, or did this come much later? Perhaps an emperor instituted the tradition of observing Good Friday?
Luke 23:26 - 43
ESV - 26 And as they led him away, they seized one Simon of Cyrene, who was coming in from the country, and laid on him the cross, to carry it behind Jesus. 27 And there followed him a great multitude of the people and of women who were mourning and lamenting for him.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.