Related Clues:

• 1600, to Cato
• Year in Elizabeth I's reign
• Four CD's
• Year 'As You Like It' debuted
• 16th century's end
• XL squared
• 1600, in old Rome
• End of the 16th century
• CLX x X
• Pennsylvania Ave. address, to Julius
• Square of XL
• CD + CD + CD + CD
• XL x XL
• 1600, in ancient Rome