The carrier frequency and incidence of alpha thalassemia vary by the type and population. Carrier frequency of this condition is reported to be the highest in individuals of Southeast Asian, African, West Indian, and Mediterranean descent.
Clitheroe Castle Museum is adjacent to the castle. The castle was listed as a Scheduled Monument on 10 April 1915 (and later, under the Ancient Monuments and Archaeological Areas Act 1979 law).It was Grade I listed on 19 May 1950.t has been suggested that Clitheroe Castle may have been first built before 1086 as there is reference to the  castellatu Rogerii pictaviensis  in the Domesday Book entry for nearby Barnoldswick. However, it is likely the passage refers to another castle.
Clitheroe. Award winning Top Hat Tours can offer groups of visitors tailored tours to meet their needs as well as scheduled tours open to individuals to book onto. Haunted and Heritage tours a speciality!A selection of tours include:Ribble Valley Coach Tour.litheroe. The Bowland Beer Company Ltd started operating in April 2003, brewing on a one Brewers Barrel (BBL) plant in a store room at the Bashall Barn farm shop a few miles North West of Clitheroe, but is now located at Holmes Mill in Clitheroe itself.