Related Clues:

• 17-Down, for instance
• Word rearranged and hidden in this puzzle's eight longest answers
• It has 12 months
• Number after a © symbol
• Revolutionary period
• It changes annually
• 12 months
• History test answer, maybe
• 2, 4, 6 or 2008
• Usual diary capacity
• Four quarters' equivalent
• See 9
• See 19
• See 12
• See 7