Answer:
The Virginia Plan was a draft that served as a basis for discussion during the Constitutional Convention of the United States of America in 1787. After the Articles of Confederation threatened to fail as a constitution, 55 delegates from twelve of the 13 states (Rhode Island refused to attend) held a joint meeting in Philadelphia to discuss the future organization of the Confederation. The Virginia Plan consisted of 15 individual proposals, each addressing a specific aspect of the government system. The plan was given its name by Edmund Jennings Randolph, Virginia's delegate, who introduced these during the assembly and was also the first to propose a completely new constitution - originally, only a revision of the Articles of Confederation was envisaged.
One of the main features of the Virginia Plan, and one of the most controversial issues during the assembly, lay in the design of the Legislature. The plan provided for a two-chamber system in which both chambers should be chosen in proportion to the number of inhabitants. The population of each state would choose the lower house directly, which in turn would elect the members of the upper house. This proposal was criticized in particular by the less populous states, which feared a loss of power within the central government. As a counter-proposal, they submitted the New Jersey Plan.
The solution to the conflict came after long debates in the Connecticut Compromise, which also provided for two chambers. The lower house should consist of directly elected representatives (today's House of Representatives). In the upper house, each state should have exactly two representatives appointed by them (the current Senate). From 1913, the senators are elected directly.