June 29 in American History

June 29, 1956 — the Interstate Highway Act

President Eisenhower signed the law creating the Interstate Highway System — 41,000 miles of high-speed roads that would remake American life, commerce, and geography. Inspired partly by Eisenhower's WWII experience with Germany's autobahns and by defense needs, it became one of the largest public works projects in human history.

Common Questions About June 29

What happened on June 29 in American history?

In 1956: the Interstate Highway Act. President Eisenhower signed the law creating the Interstate Highway System — 41,000 miles of high-speed roads that would remake American life, commerce, and geography.

Why is June 29 significant?

President Eisenhower signed the law creating the Interstate Highway System — 41,000 miles of high-speed roads that would remake American life, commerce, and geography. Inspired partly by Eisenhower's WWII experience with Germany's autobahns and by defense needs, it became one of the largest public works projects in human history.

The Daily Poll · Weigh In

What should America's next great public works project be?

Opinion, not a quiz — no wrong answer.

★ Forge Your Freedom

How Well Do You Know American History?

Your Freedom Score puts a number on it — 60 seconds, free. See how you rank, then get a history moment like this in your brief every day.

Take the Free Assessment
the spark that ignites World War Ithe Pure Food and Drug Act