Complex sentence: In 1983, Champetier helped organise the Boréal Congress, an annual Quebec science-fiction conference and would serve on the conference's board of directors in 1984, and again from 1989 to 1999, becoming Vice-President from 1994 to 1999.
Split into simpler sentences: In 1983, Champetier helped organise the Boréal Congress, an annual Quebec science-fiction conference. He would serve on the conference's board of directors in 1984, and again from 1989 to 1999, becoming Vice-President from 1994 to 1999.