Clothing history: In which year were blue jeans (riveted denim trousers) invented? Context: Levi Strauss and Jacob Davis received the U.S. patent for riveted pockets. Choose the correct year.

Difficulty: Easy

1853
1873
1886
1893

Correct Answer: 1873

Explanation:

Reasoning
Levi Strauss and tailor Jacob Davis received U.S. Patent No. 139,121 on May 20, 1873 for rivet-reinforced denim trousers — the birth of blue jeans.

Common pitfalls

Choosing 1853 (Levi Strauss arrived in San Francisco) or 1886 (later branding milestones).

Final Answer
1873.

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