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What did the night sky look like on the 1st Independence Day 250 years ago?
As the U.S. celebrates its 250th birthday, here's what Benjamin Franklin and other colonists would have seen when they looked up on July 4, 1776.
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space.com
Space science has come a long way since July 4, 1776. Here's a look back at the saga
Celebrating America's 250th birthday, Space.com looks back at what our understanding of space was like in 1776 and what major developments occurred to change our thinking.
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forbes.com
How Philadelphia Weather On July 4th, 1776 Compared To Today
A weather and history lesson on July 4th and the Semiquincentennial.
