Complex sentence: Further, Napoleon's new government outlawed the guild system, which was re-introduced at a later time, but the ban was in effect long enough to push marquetry from the forefront of the arts.
Split into simpler sentences: Further, Napoleon's new government outlawed the guild system. Even though the guild system was re-introduced at a later time, the ban was in effect long enough to push marquetry from the forefront of the arts.