What resource were the revolutionaries seeking when they stormed the Bastille? They were seeking gunpowder.
On 14 July 1789, Parisian crowds had already seized large quantities of muskets from the Hôtel des Invalides, but those weapons lacked powder and shot. The Bastille was known to hold a newly transferred supply of gunpowder, making it a practical military target as well as a powerful symbol of royal authority.
The Invalides commander had reportedly moved about 250 barrels of powder to the Bastille for safer storage. Crowds gathered outside the fortress demanding access to the powder, along with the withdrawal of its cannon and the surrender of its weapons. Negotiations failed, and fighting began in the afternoon.
The attackers did take both gunpowder and firearms after entering the fortress. Weapons were therefore part of the wider objective, but gunpowder was the specific resource most urgently needed by people who had already armed themselves. The Bastille’s symbolic importance explains why the event became so famous, even though only seven prisoners were found inside.