Trending Science Topics in Japan — September 2026
The 99 most-viewed science topics on Wikipedia, September 2026 (Japanese-language edition). Ranked by real-world attention. Top: COVID-19. Data as of 24 October 2026.
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- Wikipedia pageviews — complete hourly data from Wikimedia (CC0)
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- September 2026 · Data as of 24 October 2026
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- 99 science topics — drawn from 1,411,216 articles Wikipedia recorded views for in this window
This counts a Wikipedia language edition, not a country's residents — Measured from the Japanese-language Wikipedia edition — readers worldwide, not residents of Japan. Nothing here is capped or sampled: it is every view Wikipedia published for these articles in the window. Rows carrying a 📰 badge add news coverage from GDELT; entity names and types come from Wikidata. Looking for what one country read? That is what the world reads — a different, capped measurement.
Where this data comes from ›99
Ranked
178,848
Total Views (September 2026)
1
COVID-19
contagious disease caused by SARS-CoV-2
10,545
views
views
2
Gregorian calendar
internationally accepted civil calendar
9,221
views
views
3
human evolution
evolutionary process leading up to the appearance of anatomically modern humans
8,192
views
views
4
fasciation
condition of abnormal growth in vascular plants
7,369
views
views
5
tricolour cat
coat pattern in domestic cats
6,292
views
views
6
Izanagi boom
5,610
views
views
7
Julian calendar
calendar introduced by Julius Caesar in 45 BC
4,622
views
views
8
feminism
group of movements that come about defining, and defending women liberation and gender equity
4,619
views
views
9
estimated population
based on the national census, population based on estimated values calculated by adjusting monthly births, deaths, immigration, and emigration
3,491
views
views
10
chronology of the universe
history and future of the universe according to Big Bang cosmology
3,465
views
views
11
physics
study of matter and its motion, along with related concepts such as energy and force
3,218
views
views
12
ecstasy
advanced emotion, subjective experience of total involvement of the subject, with an object of their awareness
3,049
views
views
13
Hellenistic period
period of Mediterranean history from 323 to 31 BC
2,897
views
views
14
Slack
web-based instant messaging service
2,457
views
views
15
Nixon Shock
1971 decoupling of the US dollar from gold
2,314
views
views
16
Ayurveda
pseudoscientific alternative medicine originating from India
2,280
views
views
17
civilian control of the military
principle that civilian political leadership exercises ultimate authority over decisions of military strategy
2,280
views
views
18
tabby cat
domestic cat with a distinctive coat marked by stripes, dots, lines, or other patterns
2,270
views
views
19
healing
process of the restoration of health
2,194
views
views
20
homeopathy
system of pseudoscientific alternative medicine based on the doctrine of "like cures like"
2,172
views
views
21
folkloristics
branch of anthropology devoted to the study of folklore
2,125
views
views
22
Apple Intelligence
artificial intelligence platform developed by Apple
2,110
views
views
23
police misconduct
inappropriate or illegal actions taken by police officers in connection with their official duties
2,109
views
views
24
ridership
number of people using a transit service
2,026
views
views
25
aquaculture
farming things in water, primarily intended as a food source
1,984
views
views
26
vibe coding
software development practice with AI assistance
1,946
views
views
27
Geography of Japan
Overview of the geography of Japan
1,871
views
views
28
logic
study of correct reasoning
1,834
views
views
29
Einin no Tsubo scandal
1,790
views
views
30
French Republican calendar
calendar
1,737
views
views
31
Jinmu boom
1,706
views
views
32
Uji-Kabane system
1,701
views
views
33
Altai Mountains
mountains in Russia, Kazakhstan, China, and Mongolia
1,612
views
views
34
pollination
biological pollination process occurring in plants
1,594
views
views
35
cultural anthropology
branch of anthropology focused on the study of cultural variation among humans
1,576
views
views
36
Islamic calendar
lunar calendar used by Muslims to determine religious observances
1,552
views
views
37
Red Star Style Stolen Bases
Base stealing statistics in baseball
1,505
views
views
38
prospect theory
theory of behavioral economics and behavioral finance that was developed by Daniel Kahneman and Amos Tversky in 1979
1,478
views
views
39
Dalcroze Eurhythmics
developmental approach for teaching music
1,463
views
views
40
filter bubble
intellectual isolation involving algorithms
1,456
views
views
41
hydroelectricity
electricity generated by hydropower
1,419
views
views
42
Great Osaka
The period when the population of Osaka exceeds that of Tokyo
1,363
views
views
43
teletext
television information retrieval service developed in the United Kingdom in the early 1970s
1,339
views
views
44
Iwato boom
1,331
views
views
45
Maya calendar
system of calendars used in pre-Columbian Mesoamerica
1,315
views
views
46
reverberatory furnace
metallurgical furnace
1,309
views
views
47
Socratic method
type of dialog or debate
1,298
views
views
48
Early Dynastic Period of Egypt
period of ancient Egyptian history
1,296
views
views
49
sexology
scientific study of human sexuality
1,279
views
views
50
cosmology
scientific study of the origin, evolution, and eventual fate of the universe
1,246
views
views
51
Médecins Sans Frontières
international humanitarian medical non-governmental organisation
1,237
views
views
52
rule of law
doctrine that advocates that every citizen, including those in government, is subject to the law
1,233
views
views
53
dispensationalism
Christian theology
1,214
views
views
54
PowerShell
cross-platform command-line interface and scripting language for system and network administration
1,202
views
views
55
Abenomask
Cloth face masks delivered by the Japanese Government in occasion of COVID-19
1,198
views
views
56
densely inhabited district in Japan
in Japanese census
1,169
views
views
57
halo
safety device in open-wheel racing
1,166
views
views
58
Tenpō calendar
Japanese lunisolar calendar
1,159
views
views
59
tortoiseshell
two-color coat coloring found almost exclusively in female cats
1,089
views
views
60
positron
subatomic particle with positive charge
1,035
views
views
61
semantics
study of meaning in language
1,028
views
views
62
Pauli exclusion principle
quantum mechanical principle that two identical fermions cannot occupy the same quantum state simultaneously
1,024
views
views
63
backpropagation
optimization algorithm for artificial neural networks
1,008
views
views
64
syntax
inner structure of sentences and the linguistic field that studies it
989
views
views
65
military history of Japan
military history
982
views
views
66
Japanese calendar
calendar
980
views
views
67
rekichuugedan
calendar
973
views
views
68
CVCC
reduced-emissions engine by Honda
960
views
views
69
poison gas production in Ōkunoshima
925
views
views
70
COVID-19 vaccine
vaccine against SARS-CoV-2 coronavirus
917
views
views
71
School Meals
meal provided to students at school
897
views
views
72
biochemistry
study of chemical processes in living organisms
836
views
views
73
hurricane hunters
aviation missions that deliberately fly into tropical cyclones to obtain weather data
813
views
views
74
science
808
views
views
75
Western philosophy
philosophical tradition of Western civilization
790
views
views
76
Kampo
system of diagnosis, therapy and study of traditional Chinese medicine in Japan
764
views
views
77
sleep deprivation
condition of not having enough sleep
762
views
views
78
cultural studies
academic field of critical theory and literary criticism
741
views
views
79
inclusive education
refers to including all students in equal access to equal opportunities of education and learning
730
views
views
80
severe fever with thrombocytopenia syndrome
medical condition
729
views
views
81
Android Auto
Google app for use in conjunction with a modern car Head Unit or standalone
709
views
views
82
Wuhan pneumonia
name of COVID-19 began with an outbreak in Wuhan city, China
697
views
views
83
geography of Taiwan
overview of the geography of Taiwan
683
views
views
84
Chinese calendar
lunisolar calendar
680
views
views
85
criminal investigation
process that attempts to determine the facts of a crime and circumstances
679
views
views
86
Lebensraum
German "living space" ideas of settler colonialism (1890s–1940s)
674
views
views
87
geography of the United States
overview of the geography of the United States of America
669
views
views
88
AlphaFold
software by DeepMind
666
views
views
89
hybrid warfare
type of war, warfare and a theory of military strategy
659
views
views
90
Rechtsstaat
doctrine in European legal thinking, means "state based on justice and integrity"
652
views
views
91
gestation crate
metal enclosure used in intensive pig farming
650
views
views
92
linguistic typology
academic discipline categorizing languages
650
views
views
93
Linnaean taxonomy
rank-based taxonomy, sometimes (wrongly) ascribed to Linnaeus
649
views
views
94
natural language processing
field of computer science and linguistics
647
views
views
95
Roman calendar
calendar
647
views
views
96
groundwater recharge
process of infiltration and percolation of water in the ground and aquifers
647
views
views
97
creationism
religious belief that nature, and aspects such as the universe, Earth, life, and humans, originated with supernatural acts of divine creation
639
views
views
98
AlphaGo versus Lee Sedol
Go match between AlphaGo and Lee Sedol
633
views
views
99
self-incompatibility in plants
biological reproductive mechanism component
633
views
views