Historical clue formulations

• Explosion fragments — 2021-12-21
• Shell pieces — 2020-04-25
• Explosion fragments — 2018-12-02
• Henry ___, British Army officer who invented the exploding shell — 2017-11-20
• Bits of shells — 2005-11-27
• Ammo named after its English inventor — 2004-04-24
• Dangerous debris — 1995-03-24