Founded in 1865, Forest were founder members of the Football Alliance in 1889 and joined the Football League in 1892. Since then they mostly competed in the top two League tiers, excepting five seasons in the third tier. Forest won the FA Cup in 1898 and 1959. Their most successful period was under the management of Brian Clough between 1975 and 1993, winning the League in 1978, back to back European Cups in the two years thereafter, four League Cups and two Full Members Cups. Forest have yo-yoed between the second and third tiers since relegation from the Premier League in 1999. Also Nottingham Forest are great rivals with Derby County.