Final answer:
The Articles of Confederation established a congress which was a unicameral legislature and did not include a separate executive or judiciary.
Step-by-step explanation:
The Articles of Confederation established a congress. This was a unicameral (one-house) legislature without a separate executive branch or national judiciary. The Congress of the Confederation was composed of two delegates from each state, and there was no national president in the modern sense. The 'President of the United States' at the time was simply the chair of this Congress. The Articles did not create a supreme court or establish a dual-chamber congress (a house and a senate).