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The Empire State Building opens in New York City

On this day · 1 May 1931
45 sec read

On May Day 1931, a 102-story tower opened in Manhattan and held the title of world's tallest building for nearly 40 years.

Verified · The American Presidency Project — Message on the Completion of the Empire State Building

On 1 May 1931, the Empire State Building opened its doors to the public. From the White House, President Herbert Hoover pressed a golden telegraph key, symbolically switching on the lights of New York’s newest landmark while a luncheon crowd that included Al Smith and Franklin D. Roosevelt gathered on the 86th floor.

At 102 stories and 1,250 feet (1,454 feet to the tip of its lightning rod), it was the tallest building in the world. It would keep that crown until the World Trade Center surpassed it in 1970 — nearly four decades later.

Raised in just over a year, it rose roughly a floor a day at the height of construction.

The timing was awkward. The tower opened into the depths of the Great Depression, and so much of its office space sat empty that New Yorkers wryly nicknamed it the “Empty State Building.” Full tenancy would not arrive until the 1940s.

102
stories
1,250 ft
tall
~40 yrs
world's tallest

Sources & references

2 references

Well-established. Corroborated by 2 independent sources.

1 The American Presidency Project — Message on the Completion of the Empire State Building academic archive “The message was read at ceremonies opening the Empire State Building in New York City. During the ceremonies, the President turned on the lights in the building by touching a golden telegraph key in the White House.” presidency.ucsb.edu ↗
2 HISTORY media “On May 1, 1931, President Herbert Hoover officially dedicates New York City's Empire State Building... At the time of its completion, the Empire State Building, at 102 stories and 1,250 feet high, was the world's tallest skyscraper.” history.com ↗
✓ Last reviewed Jun 7, 2026

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