Below is a chronological timeline showing the oldest British chickens to the newest.

pre Roman
pre 1483

Rosecomb

pre 19th century
pre 19th century

Derbyshire Redcap

pre 19th century
pre 19th century

Old English Pheasant Fowl

pre 19th century
< 1812

Sebright

mid 19th century
1886
late 19th century
1903

Sussex

< 1914
1939
1945

Legbar

1948
1952

Brussbar

1952
1950-51

Wybar