What are three importnat actions taken by president washington and congress

Created departments within the executive branch, setup the court system, and added the Bill of Rights to the Constitution.

There are many important actions taken by Washington together with the first congress, but we'll provide you with three of them as the question requests so: 1. Passing the first ten Amendments of the Constitution (Bill of Rights). There weren't proper constitutional provisions protecting the citizens' rights and liberties until the actual ratification of these 10 first Amendments in Dec 15, 1791; it was through the efforts of Madison, Washington and the First Congress that they came to be. 2. Planning the building of the first centralized US Bank. In order to establish financial order and security in the newly formed United States, the Secretary of Treasury Hamilton was given the lead position in building the "First Bank of the United States"; a supported and successful project by Washington and the First Congress. 3. Setting up the court system and precedents. The First Congress was responsible of applying and establishing further details of a new juridical system, as explained in the Judiciary Act 1789; it mainly established a Supreme Court, with inferior courts, too, based on precedents (previously decided cases as reliable basis).