Profile advisor
Paste a column of dates from a collection and the advisor says which conventions the data uses, before anything is parsed. Each string is still parsed on its own; the advisor only recommends the profile to parse it under, and writes that profile out for you to review and save. Nothing you paste is stored.
Or try a corpus sample: yearrange (museum catalogues) timetwister (US archives) Getty ULAN (artist dates) EDTF specification examples PMC (Paul Mellon Centre) outputs
The same advice from code
The advisor is a library call and an endpoint on the dates API; the response carries these counts, the examples, the recommendations, the suggested profile and a Markdown rendering.
POST https://dates.linkedart.net/v1/advise
Content-Type: text/plain
early 19th century
ca. 1850
7/4/1776
var report = ProfileAdvisor.Analyse(File.ReadLines("dates.txt"));
Console.WriteLine(report.ToMarkdown());
File.WriteAllText("profiles/mine.json", report.SuggestedProfileJson("mine").ToJsonString(ParseProfile.JsonOptions));
Or from the repository: dotnet run --project tools/Corpus -- advise dates.txt.