Maine Road, December 9, 1967.
The snow was falling and the pitch was glazed with ice. City's game against Tottenham somehow went ahead and the home side produced one the best performances in the Club's history, winning 4-1, a result that spread belief among the squad City could win the title.
And, of course, they duly did.
To celebrate the anniversary of that special day, we have dug up the highlights.
So, sit back and enjoy a look back at one of City's greatest displays.
City XI: Mulhearn, Book, Pardoe, Oakes, Heslop, Doyle, Bell, Coleman, Lee, Young, Summerbee
Spurs XI: Jennings, Kinnear, Knowles, Mackay, Mullery, Hoy, Jones, Saul, Greaves, Venables, Gilzean