Complex sentence: It is the most widespread system of law in the world, in force in various forms in about 150 countries, and draws heavily from Roman law, arguably the most intricate known legal system dating from before the modern era.
Split into simpler sentences: It is the most widespread system of law in the world, in force in various forms in about 150 countries. It draws heavily from Roman law, arguably the most intricate known legal system dating from before the modern era.