Related Clues:

• Used to be
• Existed
• Third word in a limerick
• Resided
• See 24-Across
• Took place
• 'It's ___ real!'
• Is no longer
• See 51-Down
• Occurred
• Lived
• '___ there, done that'
• '___ here long?'
• Is in another form?
• 'I've ___ down so long ...'