IGCSE Edexcel Germany: Development of dictatorship 1918-45 Edexcel IAL: Britian, 1964-90 igcse edexcel a divided union: civil rights in the usa 1945-74 Edexcel IAL: Russia, 1917-91: from lenin to yeltsin igcse edexcel the usa: 1918-41 EDEXCEL IAL: civil rights and race relations in the usa, 1865-2009 IGCSE edexcel changes in medicine: 1848-1948