Wow, we museum people just can't get anything right...

From NBC4.com

ALLEGAN, Mich. -- Millions of people have paraded past the Tower of Time exhibit at the Smithsonian's National Museum of Natural History in Washington.But eleven-year-old Kenton Stufflebeam of Allegan, Michigan, is the first visitor to have caught a particular mistake there.He and his family went to the museum during winter break.
Kenton noticed that the Tower of Time, which involves prehistoric time, referred to the Precambrian Era.The Alamo Elementary School fifth-grader knew that its proper name was just the Precambrian, with out the "era."He left a note with his concern. Museum officials wrote Kenton back last week, telling him he was right.The boy notes that they misspelled his last name and hometown.