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Diary Observatory

Same Day, Different Lives

January 1, 1918

One New Year’s Day, one indexed life.

Date
1918-01-01
Day
Tuesday
Indexed lives
1
Cities
1
Countries
1
Languages
1
Comparison status
Open
Verification status
Partial
Last updated
2026-08-02

Comparison status

Indexed lives
1
Writers
Kafū Nagai
Cities
Tokyo
Countries
Japan
Languages
Japanese
Comparison state
Open

This page is intentionally incomplete.

A Same Day observation begins with one surviving record and remains open to other lives.

Indexed life

Writer

Kafū Nagai

Tokyo / Japan

Japanese

Diary: Danchōtei Nichijō

A New Year’s Day without celebration.

  • New Year
  • Domestic Life
  • Heating
  • Cleaning
  • Routine
  • Body
  • Private Time
Evidence level:
Explicit / Implied / Contextual
Verification status:
Partial
Source status:
Primary text — edition details needed / no long quotation
Source quality:
Partial provenance
Provenance:
Source quality for Kafū: Partial — diary identified; Edition / Page / SourceCapture missing.
View this day

The day in Tokyo

  1. New Year’s Day

  2. Cold interior

  3. Waiting

  4. Tidying

  5. Cleaning

  6. Ordinary time

Concept

The calendar says New Year. The diary records ordinary life.

Other lives not yet indexed

Empty slots are not defects. They are observational margin — no invented writers or events.

London

No indexed diary yet.

Paris

No indexed diary yet.

New York

No indexed diary yet.

Berlin

No indexed diary yet.

Other Japan

No indexed diary yet.

Other city

Open for future observation.

Same Day matrix

One column for now. Not indexed / Not recorded / Unknown are stated explicitly. Structure supports future multi-life columns.

Kafū Nagai / Tokyo

Writer / 書き手
Kafū Nagai
verified
Diary / 日記
Danchōtei Nichijō
verified
City / 都市
Tokyo
verified
Country /
Japan
verified
Language / 言語
Japanese
verified
Public date / 公共の暦
New Year’s Day
verified
Weather / 天候
Not indexed
unknown
Indoor condition / 室内
Cold before warming
needs-source
Body / 身体
Responding to cold
needs-source
Work / 仕事
Not recorded in indexed summary
unknown
Food / 食事
Not recorded
unknown
Visitors / 来客
Not recorded
unknown
Movement / 移動
No indexed outdoor movement
unknown
Domestic action / 家事
Tidying / cleaning
needs-source
Technology / 技術
Paper diary / domestic heating source unidentified
unknown
Themes / テーマ
New Year / domestic life / routine / body
verified
Evidence / 証拠水準
Explicit / Implied / Contextual
needs-source

What can be compared on New Year’s Day?

  • Celebration

  • Domestic life

  • Food

  • Family

  • Body

  • Work

  • Weather

  • Media

  • Movement

  • Public events

  • Private mood

January 1 across years

Other years — Not indexed

Research queue

  • Another New Year’s Day in Danchōtei Nichijō

    Archive to check

    Bibliographic research needed — do not assert a specific dated entry yet.

  • Furukawa Roppa’s New Year entries

    Bibliographic research needed

    Candidate archive — not an indexed Entry.

  • Wartime New Year diaries

    Archive to check

    Not yet indexed — no invented writers or dates.

  • Postwar New Year diaries

    Archive to check

    Not yet indexed.

  • Contemporary blogs and digital diaries

    Not yet indexed

    Archive research needed.

Concept

A date that returns every year

The world outside the diary

  • Public historical contextNot yet indexed
  • Weather recordsResearch needed
  • National eventsResearch needed
  • International eventsResearch needed
  • Newspaper contextResearch needed

Private diary time and public history must be verified separately.

How much do we know?

  • Explicit

    Recorded · 明示
    • 正月
    • 特別な行事をしない
    • 室内が暖まるのを待つ
    • 片づけ
    • 掃除
  • Implied

    Implied · 含意
    • 暖房または火
    • 掃除道具
  • Contextual

    Contextual · 文脈
    • 寒い室内
    • 家事を行う住居空間
    • 暖まるまでの待ち時間
  • Unknown

    Unknown · 不明
    • 天候
    • 食事
    • 来客
    • 外出
    • 執筆
    • 暖房器具
    • 掃除道具
    • 具体的な居室

Concept

A diary preserves the speed of life.

What remains from January 1, 1918?

Record survival — how the day persists as text, calendar, practice, and unknowns. Not an Entity status score.

  • text-survives

    Text survives

    Primary diary text survives in editions; not reproduced here.

    partial

  • practice-survives

    Calendar survives

    The calendar day remains readable as New Year.

    verified

  • practice-survives

    Practice survives

    Domestic routines remain as recorded practices.

    partial

  • practice-survives

    Human need survives

    The bodily need for warmth remains a living condition.

    partial

  • practice-survives

    Domestic time survives

    Time spent ordering the house remains in the record.

    partial

  • object-unknown

    Objects unknown

    Heating appliance and cleaning tools are not identified.

    unverified

  • place-unknown

    Place unknown

    Exact room identity unknown.

    unverified

  • context-research-needed

    Public context pending

    Public history and weather — research pending; not asserted.

    needs-source

May 2, 2011

Tokyo / Kenji Nishimura

Ordinary date

Indexed

March 10, 1945

Tokyo

Historical date

Coming observation

August 15, 1945

Multi-city (planned)

Historical date

Coming observation

September 11, 2001

Crisis period

Crisis period

Coming observation

March 2020

Crisis period

Crisis period

Coming observation

How another life enters this page

  1. 1

    Find a dated primary source

  2. 2

    Verify writer, place, and edition

  3. 3

    Summarize without long reproduction

  4. 4

    Extract body, place, people, objects, actions, and media

  5. 5

    Assign evidence level (Explicit / Implied / Contextual / Unknown)

  6. 6

    Separate private time from public history

  7. 7

    Add the entry to the comparison matrix

Research queue

  • 1918年1月1日の東京の天候

    research-needed

    Type: Historical weather

    Priority: high · source needed

    Attach measured weather only after verifying official records.

    Do not invent temperature or sky conditions.

  • 1918年の住居と暖房

    source-needed

    Type: Domestic history

    Priority: high · source needed

    Heating appliance type remains unidentified.

  • 1918年の正月習慣

    queued

    Type: New Year customs

    Priority: medium · source needed

    Public calendar context — separate from private diary summary.

  • 同日の日本人作家の日記

    queued

    Type: Literary diaries

    Priority: medium · source needed

    Archive to check — no invented writers or entries.

  • 同日の海外作家の日記

    queued

    Type: International diaries

    Priority: medium · source needed

    Empty city slots await verified dated sources.

  • 新聞・公共史

    research-needed

    Type: Public historical context

    Priority: low · source needed

    Keep public history separate from diary private time.

Sources

  • 永井荷風『断腸亭日乗』1918年1月1日Primary diary sourceverification-pending

    Supports: Indexed life summary; domestic actions; New Year without ceremony

    Edition bibliography needed. No long quotation.

    Work rights and modern edition rights are separate.

  • Modern edited / annotated editionsModern editionsneeded

    Supports: Readable text for indexing after imprint confirmation

    Edition details needed — Source verification pending

  • Public-domain / authorized digital textPublic-domain sourceneeded

    Supports: Legal text access — jurisdiction-specific

    Do not invent URLs. Verify public-domain status per edition.

  • Historical meteorological records for Tokyo, 1918-01-01Historical weatherneeded

    Supports: Measured weather layer only — never conflated with diary wording

    Research needed before any temperature claim.

  • Domestic history — housing, heating, housework c. 1918Domestic historyneeded

    Supports: Context for waiting-for-warmth; appliance type remains unknown

  • New Year customs in Taishō JapanNew Year customsneeded

    Supports: Public calendar layer — separate from private diary day

  • Newspaper / public historical context for 1918-01-01Public historical contextneeded

    Supports: Outside-the-diary world — not yet indexed

    Do not invent public events for this page.

Sources

Primary source / 一次資料

  • 永井荷風『断腸亭日乗』1918年1月1日Verification pending

    Edition bibliography needed. No long quotation.

  • Modern edited / annotated editionsSource needed

    Edition details needed — Source verification pending

  • Public-domain / authorized digital textSource needed

    Do not invent URLs. Verify public-domain status per edition.

Verification sources / 現況確認

  • Historical meteorological records for Tokyo, 1918-01-01Source needed

    Research needed before any temperature claim.

  • Domestic history — housing, heating, housework c. 1918Source needed
  • New Year customs in Taishō JapanSource needed

Editorial references / 編集参考

  • Newspaper / public historical context for 1918-01-01Source needed

    Do not invent public events for this page.