George Pullman: Identify the invention most associated with his name in railway history. Full question: What did George Pullman invent? Choose the correct option.

Given data

• Person: George Pullman.
• Domain: Rail transport.

Concept / Approach
Pullman designed and popularized the luxury sleeping railway car, transforming long-distance passenger comfort and service in the late 19th century.

Option notes
Refrigerated cars were led by Gustavus Swift; the safety elevator by Elisha Otis; diesel-electrics emerged much later via multiple firms.

Final Answer
Sleeping railway car (Pullman car).