that Derby side in 2007-08 was the worst toplight English team in my life
Derby were officially relegated on 29 March 2008 after their 2–2 home draw with fellow strugglers Fulham and Birmingham City's 3–1 victory over Manchester City left them 19 points away from safety with only 6 games left.
This made Derby the first club in Premiership history to be relegated in March, the earliest team to be relegated in terms of date, and the first since Sheffield United in 1975-76 to go down from the top flight from that month, at the time only the second time it had ever happened in post-war English Football league history, before Huddersfield Town were relegated in March 2019.
They also accumulated the league's lowest points total since the introduction of 3 points for a win with just 11 points, as well as the record for the fewest wins in a Premier League season with just one victory in 38 games; also most defeats (29), fewest goals scored (20), most goals conceded in a 38-game season (89); the latter record has since been broken by Sheffield United (2023–24).