
Rush Revere and his talking horse, Liberty, are time-traveling history buffs created by Rush Limbaugh.
Historians are still buzzing about the 1795 Boston time capsule that was buried by American patriots Paul Revere and Samuel Adams.
Among them is radio host and U.S. history author Rush Limbaugh, who said on Wednesday's broadcast:
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"Because of our children's book series, 'Rush Revere and the Brave Pilgrims,' the fact that a time capsule that was planted, if you will, by Paul Revere and Samuel Adams was opened yesterday in Boston ... is uncanny news to us!
"Paul Revere and Samuel Adams left a time capsule. It was found, and it was opened yesterday. It did not contain Obama's birth certificate. Many people were thinking that it might. But it didn't."
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Listen to Rush talk about Obama's birth certificate:
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Limbaugh noted his call screener Bo Snerdley was frowning in the studio when he made mention of the president's controversial birth document.
"Obama's birth certificate in a time capsule from the 1700s?" Limbaugh asked rhetorically. "Yup. A lot of people were hoping it would be in there. But it wasn't."

Rush Limbaugh wonders about Barack Obama's birth certificate on Wednesday's program.
The box actually contained coins and newspapers from the late 18th century.
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See the actual contents: