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The law of the United States comprises many levels of codified and uncodified forms of law, of which the most important is the United States Constitution, the foundation of the federal government of the United States. The Constitution sets out the boundaries of federal law, which consists of acts of Congress, treaties ratified by the Senate, regulations promulgated by the executive branch, and case law originating from the federal judiciary. The United States Code is the official compilation and codification of general and permanent federal statutory law.

What sets out the boundries of federal law?
Answer: The Constitution
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A national university is generally a university created or run by a national state but at the same time represents a state autonomic institution which functions as a completely independent body inside of the same state. Some national universities are closely associated with national cultural or political aspirations, for instance the National University of Ireland in the early days of Irish independence collected a large amount of information on the Irish language and Irish culture. Reforms in Argentina were the result of the University Revolution of 1918 and its posterior reforms by incorporating values that sought for a more equal and laic higher education system.

What was a focus of the National University of Ireland during the beginning of Irish Independence?
Answer: Irish language and Irish culture
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Manhattan Island is linked to New York City's outer boroughs and New Jersey by several tunnels as well. The Lincoln Tunnel, which carries 120,000 vehicles a day under the Hudson River between New Jersey and Midtown Manhattan, is the busiest vehicular tunnel in the world. The tunnel was built instead of a bridge to allow unfettered passage of large passenger and cargo ships that sailed through New York Harbor and up the Hudson River to Manhattan's piers. The Holland Tunnel, connecting Lower Manhattan to Jersey City, New Jersey, was the world's first mechanically ventilated vehicular tunnel when it opened in 1927. The Queens-Midtown Tunnel, built to relieve congestion on the bridges connecting Manhattan with Queens and Brooklyn, was the largest non-federal project in its time when it was completed in 1940. President Franklin D. Roosevelt was the first person to drive through it. The Hugh L. Carey Tunnel runs underneath Battery Park and connects the Financial District at the southern tip of Manhattan to Red Hook in Brooklyn.

The Holland Tunnel opened in what year?
Answer:
1927