Why is "Kaimingjie germ weapon attack" trending?
Latest news, Wikipedia summary, and trend analysis.
Trend Analysis
- Ranking position: #
- Date: 2026-04-22 19:34:26
This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
Trend Insight
Kaimingjie_germ_weapon_attack entered the ranking for the first time today at position #. This is its highest position ever recorded.
Trend History
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-04-22 and was most recently seen on 2026-04-22.
Wikipedia Overview
The Ningbo plague attack was a secret biological warfare attack launched by Japan in October 1940 against the Kaiming Street area of Ningbo, Zhejiang, China, using fleas infested with plague. A joint operation of the Imperial Japanese Army's Unit 731 and Unit Ei 1644, the attack was carried out by military planes taking off from Jianqiao Airport in Hangzhou, which airdropped wheat, corn, cotton scraps, and sand infected with plague fleas to target locations. From September 1940, Ningbo, Quzhou, and other places were subjected to various forms of biological warfare until the end of October 1940, when the attacks triggered a plague epidemic in Ningbo.
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Why This Topic Is Trending
This topic has recently gained attention due to increased public interest. Search activity and Wikipedia pageviews suggest growing global engagement.
Search Interest & Related Topics
Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.