What was the significance of the louisiana purchase lp?

Why was hawaii so important to the united states & why did japan bomb pearl harbor?

What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role

What practical concern lay behind the promotion of longitudinally planned churches in 17th-century rome? a) allowing the circulation of pilgrimsb) interior lighting of the navec) support for the heavy domed) accommodating parishioners