Original sentence: Leopold George Frederick Agar-Ellis, 5th Viscount Clifden (13 May 1829-10 September 1899), known as Leopold Agar-Ellis until 1895, was a British Liberal politician
Edited sentence: Leopold George Frederick Agar-Ellis, 5th Viscount Clifden (13 May 1829 – 10 September 1899), known as Leopold Agar-Ellis until 1895, was a British Liberal politician