820 canonical forms + 578 route stages.
THE TIMELINE ATLAS
JOURNEY ATLAS ↗FORM / ROUTE / BOUND
1398 REVIEWED EVENTSLANGUAGE
IN TIME.
One cross-word chronology for every defensibly bounded form and journey stage—without converting a vague historical label into a fake year.
A reviewed graph bound, not a claim of an earliest human word.
Only stages with directly cited numeric bounds enter this atlas.
Labels remain visible in Journey Atlas, but not parsed into false years.
FILTER THE CHRONOLOGY
WHEN DID THE EVIDENCE LAND?
TWO CLOCKS.
NO FALSE PRECISION.
FORM CHRONOLOGY dates a canonical linguistic form or reconstruction in the lexical graph.
ROUTE CHRONOLOGY dates a geographic or transmission stage in a word’s journey.
They can share an era band, but they are never silently treated as the same kind of claim.
CROSS-WORD CHRONOLOGY / EARLIEST BOUND FIRST
THE EVIDENCE IN TIME
絵文字
Modern Japanese
picture character; pictograph
絵
Modern Japanese
picture; drawing
文字
Modern Japanese
written character; letter
hogan
1871 English record
Merriam-Webster reports English first known use in 1871.
hogan
1871–today
a traditional Diné dwelling; the borrowed English term
tapu
1872 corpus example–today
Te Aka documents Māori tapu and reports a dated 1872 example while preserving its living semantic field.
1872 is the cited corpus-example year, not a claim that the word began then.
AUDIT RECORD ↗sauna
1881 English record
Merriam-Webster reports the English borrowing by 1881.
The year is a lexicographic first-use report, not an earliest surviving object inspected by SET-U.
AUDIT RECORD ↗sauna
1881–today
a Finnish-style steam bath or the room in which it is taken
chthonic
1882 first known use
The reviewed dictionary reports the first known English use in 1882.
chthonic
1882–today
of the underworld; of or under the earth
kimchi
1888 English record
Merriam-Webster reports English first known use in 1888.
kimchi
1888–today
Korean fermented vegetable preparation
étymon
1892
CNRTL reports the French technical noun in Guérin.
The year is source-reported; the underlying volume was not directly inspected.
AUDIT RECORD ↗étymon
1892–today
Étymon denotes an attested or reconstructed explanatory source form.
étymon
1892–today
attested or reconstructed form used to explain a word’s historical development
hettan
hettan reconstructed from recorded forms
Bosworth–Toller, Clark Hall, Orel, and the Nerthus lemmatisation project expose different editorial decisions about the lemma, the participle, and the enemy noun.
Dates describe publication of the cited analyses, not survival of the Old English word into modern speech.
AUDIT RECORD ↗algorithm
20th century–today
Algorithm generalizes from mathematical procedure into a central term of computing and public life.
The computing-era stage begins at the twentieth-century boundary and remains open into current usage.
AUDIT RECORD ↗kayık
Modern Turkish
small boat or rowboat
robot
1920 R.U.R. coinage
Karel Čapek used robot in the 1920 Czech play R.U.R.; Merriam-Webster reports that his brother Josef suggested the name from Czech robota “forced labor.”
1920 is the cited date of the Czech R.U.R. coinage. The source supports Prague as the play’s named cultural origin, while the coordinate represents the city rather than every early occurrence.
AUDIT RECORD ↗robot
1922 core word onward; later extensions
The fictional artificial worker becomes the English term for machines performing tasks, automatic mechanisms, and people behaving in a mechanical or unfeeling way. The route leaves software and other later uses to their own evidence instead of assigning all extensions to 1922.
The open interval begins with Merriam-Webster’s 1922 English first-known-use horizon. It does not date every later mechanical, figurative, software, or automation sense to that year.
AUDIT RECORD ↗robot
1922–today
an artificial worker; later an automatic or programmable machine
robot
1922 first-use horizon; inspected 1923 edition
Merriam-Webster reports English robot in 1922 through translation of R.U.R. A separately preserved 1923 English edition was directly inspected: its photographed title page prints “Rossum’s Universal Robots,” but SET-U does not mislabel that object as the first English use.
The 1922–1923 interval joins two distinct cited claims: the lexicographic 1922 first-use horizon and the directly inspected 1923 title-page object. It is not a claim that the borrowing process lasted exactly two years.
AUDIT RECORD ↗fiende
current fiende and historical dictionary record
SAOB and SO document continuation into modern Swedish, with ordinary enemy or opponent central and military, collective, and figurative uses available.
Dictionary publication and current-use horizon, not a claim of dialectal uniformity.
AUDIT RECORD ↗ubuntu
1926 source-reported record
The dictionary's earliest listed quotation comes from G. Callaway's Fellowship of Veld.
The date is exact for the dictionary's reported quotation, while the underlying page remains uninspected in this tranche.
AUDIT RECORD ↗ubuntu
1926–today
human-heartedness, compassion, essential humanity; a philosophy associated with these qualities
چای
Dehkhoda lexicographic record–today
The Persian headword and Chinese attribution remain current in the historical dictionary tradition.
1931 marks the beginning of Dehkhoda dictionary publication, not the beginning of Persian čāy.
AUDIT RECORD ↗чай
Vasmer dictionary record
The etymological dictionary anchors the modern Russian headword and its relay analysis.
1953 marks the cited dictionary publication, not the word’s first Russian use.
AUDIT RECORD ↗icon
1982–today
Icon expands into computer-display symbols while personal and cultural representative senses continue.
chai
1984 onward
Merriam-Webster dates the current English chai entry to 1984.
The global-English stage begins with the reviewed 1984 first-known-use year for culinary chai and remains open.
AUDIT RECORD ↗chai
1984–today
a tea beverage commonly prepared with spices, milk, and sweetener
UNBOUNDED IS
A REAL RESULT.
Stages without source-backed numeric bounds stay in their complete Journey Atlas route, carry an explicit temporal note, and remain absent here until the evidence supports normalization. The missing point is visible work—not permission to guess.