1927-10-03: Celtic 4-1 Cardiff City, Friendly – The Celtic Wiki

Celtic founded 132 years ago today

Celtic Team Line-Up 1890-91 – The Celtic Wiki

Celtic F.C., Football Wiki

1974-04-10: Celtic 0-0 Athletico Madrid, European Cup – Pictures – The Celtic Wiki

Celtic F.C., Football Wiki

The Celtic Wiki – A comprehensive guide to Celtic FC, a football team based in Glasgow, Scotland.

Celtic Team Line-Up 1890-91 – The Celtic Wiki

History of Celtic F.C. (1887–1994) - Wikipedia

1974-04-10: Celtic 0-0 Athletico Madrid, European Cup – Pictures – The Celtic Wiki

Celtic F.C. in European football - Wikipedia

Celtic Team Line-Up 1895-96 – The Celtic Wiki

Celtic's Gary Hooper delivers last-gasp win over St Mirren, Scottish Premiership

1927 FA Cup final - Wikipedia

1962-09-10: Celtic 1-3 Real Madrid, Friendly – The Celtic Wiki

Celtic Team Line-Up 1961-62 – The Celtic Wiki