Odd One Out — Plassey, Haldighati, and Panipat are celebrated battles; Sarnath is a religious/historic site known for Buddha’s first sermon. Pick the odd entry and justify.

Introduction / Context:
Historical classification can center on type of event. Three entries are named for major battles; one is known chiefly as a religious/historic site.

Given Data / Assumptions:

• Battle of Plassey (1757).
• Battle of Haldighati (1576).
• Battle(s) of Panipat (1526, 1556, 1761).
• Sarnath: site of Buddha’s first sermon (Dhammacakkappavattana Sutta).

Concept / Approach:
Group by “battle” vs “non-battle” historical significance.

Step-by-Step Solution:
Plassey → battle.Haldighati → battle.Panipat → battles.Sarnath → religious/historic site → outlier.

Verification / Alternative check:
Time periods differ but do not produce a single outlier; event type does.

Why Other Options Are Wrong:

• Plassey, Haldighati, Panipat: all battles.

Common Pitfalls:
Associating Sarnath with conflict; its fame is religious and archaeological, not martial.

Final Answer:
Sarnath