Here's our picture gallery of a truely historic day
5.
Connor Hall headed the hosts in front in the 10th minute, which left Derby – with an average age of just 19 – facing an uphill battle, before Mike Calveley made sure of a place in Monday night’s draw with a close-range finish in the 84th minute.
6.
Chorley manager Jamie Vermiglio felt his players and put the town on the map – and possibly secured the non-League club £500,000 – after overpowering a youthful Derby to reach the FA Cup fourth round
7.
The National League North side made light of the four-division gap between the sides as they beat the Championship outfit 2-0 on a freezing afternoon in Lancashire
8.
Derby fielded a side made up from their youth sides with an average age of 19 and without a single game of first-team experience between them.