The correct answer is option 2: Guillotine. The Guillotine was not directly associated with the French Revolution. It was a form of execution device used during the revolution to carry out public executions, including those of the royal family members and other aristocrats. The Guillotine was introduced in 1792, three years after the start of the French Revolution.

Option 1: Calling of the Estates General is associated with the French Revolution. The Estates General was a representative assembly of the French people, consisting of three estates: the clergy, the nobility, and the commoners. Its convocation in 1789 marked the beginning of the revolution.

Option 3: Battle of Concord is not associated with the French Revolution. The Battle of Concord was an important battle that took place during the American Revolutionary War in 1775 between the British Army and local militia forces.

Option 4: Tennis Court Oath is associated with the French Revolution. It was a pivotal event in which members of the Third Estate, who represented the commoners, pledged not to disband until a new constitution was established. This oath was taken on a tennis court in Versailles in 1789.

Overall, while the Guillotine was used during the French Revolution, it was not directly