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Ancient Shell Currency: Why Didn’t Poor People Just Collect More by the Sea?
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古代贝壳就是货币，能换百亩良田，为何穷人不去海边多捡点？
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Ranking history & source details
First recorded Aug 16, 2026, 8:32 AM CST · latest Aug 23, 2026, 9:22 PM CST. Ranks reflect attention on each platform.
| Day | Platform | Best rank | Last rank |
|---|---|---|---|
| 2026-08-23 | Zhihu Daily | #29 | #29 |
| 2026-08-22 | Zhihu Daily | #25 | #25 |
| 2026-08-21 | Zhihu Daily | #21 | #21 |
| 2026-08-20 | Zhihu Daily | #5 | #5 |
| 2026-08-19 | Zhihu Daily | #4 | #4 |
| 2026-08-18 | Zhihu Daily | #3 | #3 |
| 2026-08-17 | Zhihu Daily | #2 | #2 |
| 2026-08-16 | Zhihu Daily | #1 | #1 |