Complex sentence: He toured and performed as a magician, speaker, and mesmerist until at least 1889, and the last decade of his life (1886-1897) was spent in Toronto, where he died in 1897.
Split into simpler sentences: He toured and performed as a magician, speaker, and mesmerist until at least 1889. The last decade of his life (1886-1897) was spent in Toronto, where he died in 1897.