Complex sentence: In 1853, he became a member of the committee which drafted the Constitution of Victoria, and on 18 December, 1855, Nicholson moved and carried a motion which stated that any Victorian electoral act should include voting by secret ballot.
Split into simpler sentences: In 1853, Nicholson was a member of the committee which drafted the Constitution of Victoria. The Constitution was enacted in 1855, and on 18 December of that year, Nicholson moved and carried a motion which stated that any Victorian electoral act should include voting by secret ballot.