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.
Drum Castle is a jumbled collection of adjoining buildings from different periods. The core of the castle is a 13th century tower, to which the Irvine Family then added a Jacobean Mansion, and then some civilized Victorian dwellings.Drum Castle's Tower, which you can climb to get views from, is still in its medieval state with unglazed windows, bare stone walls and earth floors.The spiral stair way in the tower is narrow and the stairs that lead to the roof of the tower are very steep.rum Castle is a jumbled collection of adjoining buildings from different periods. The core of the castle is a 13th century tower, to which the Irvine Family then added a Jacobean Mansion, and then some civilized Victorian dwellings.