Complex sentence: Arthur Aikin FGS (19 May 1773--15 April 1854), English chemist, mineralogist and scientific writer, was born in Warrington, Lancashire into a distinguished literary family of prominent Unitarians.
Split into simpler sentences: Arthur Aikin FGS (19 May 1773--15 April 1854) was an English chemist, mineralogist and scientific writer. He was born in Warrington, Lancashire into a distinguished literary family of prominent Unitarians.