Why did the US House of Representatives and the US Senate separate?

The two houses of Congress have always been separate under the US Constitution (1789). The Constitutional Convention needed to devise a solution to the idea of representational government that would be fair to all states - those with large populations, and those without. Thus, the idea of a 'bicameral' Congress was developed.

The Senate would be composed of an equal number of representatives from each state, no matter their size or population

• 2. The House would be comprised of representatives drawn from

population-dependent districts within their home state - the larger the state, population-wise, the more representatives they'd have. Thus, small states like Delaware and Wyoming have two senators each, just like California or New York. But they have far fewer representatives in the House.