Complex sentence: The Bois de la Cambre (456 acres) on the outskirts of Brussels was formed out of the forest, and beyond it in 1911 stretched the Forest, to Tervueren, Groenendael, and Argenteuil close to Mont-Saint-Jean and Waterloo.
Split into simpler sentences: The Bois de la Cambre (456 acres) on the outskirts of Brussels was formed out of the forest. In 1911 the forest still stretched to Tervueren, Groenendael, and Argenteuil close to Mont-Saint-Jean and Waterloo.