Related Clues:

• Since
• Brand at the laundromat
• Roaring Twenties, e.g.
• Way back when
• Time period
• It may appear after a long time
• Stretch of history
• Part of B.C.E.
• The Thatcher years, e.g., in Britain
• Bygone time
• Laundry detergent brand
• Years ___
• Historic time
• See 30-Across
• See 41-Down