Melvyn Bragg and guests discuss Frederick II, king of Prussia from 1740 to 1786.
4/5 Philip Ball tells how William Perkin brought purple to the people in Victorian London.
Soldiers vividly recall the terrible conditions they had to endure in Gallipoli in 1915.
Melvyn Bragg and guests discuss extremophiles and astrobiology.
Dan Snow, based in Gallipoli, hears the recollections of those who landed there in 1915.
3/5 The third man behind the unravelling of DNA's double helix Maurice Wilkins.
The experiences of two raw recruits at the Second Battle of Ypres.
Soldiers' experiences of the first German attacks using gas at the 2nd Battle of Ypres.
Veterans recall their experiences of the Battle of Neuve Chapelle in 1915.
5/5 Napoleon ended his life on a distant island. Andrew Roberts asks what history made of him.
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