Lyndon B. Johnson's head

Lyndon Baines Johnson was the 36th President of the United States from 22 November, 1963 until 20 January, 1969. By 3011, Johnson was preserved as a head in a jar and stored in the Head Museum in New New York. In that year, Zoidberg drank water from his jar, which took him, as well as Professor Farnsworth and Amy, back in time to the 1960s.