Complex sentence: Daniel Robert "Dan" Snow (born 3 December 1978) is a British television presenter, who regularly presents history programmes for the BBC and other broadcasters and has a regular history slot on "The One Show".
Split into simpler sentences: Daniel Robert "Dan" Snow (born 3 December 1978) is a British television presenter. He has presented many history programmes for the BBC and other broadcasters and has a regular history slot on "The One Show".