Historical clue formulations

• Stockpiled — 2024-09-15
• Stocked up — 2019-06-15
• Built up — 2017-11-03
• Accumulated — 2011-04-25
• Rolled up — 2004-09-03
• Piled up — 2001-07-31
• Put together — 2000-05-06
• Stockpiled — 1999-02-15
• Collected — 1995-10-20
• Gathered — 1995-07-09