Jonas Slier
Dutch gymnast

Jonas Slier (22 March 1886 in Amsterdam – 5 November 1942 in Auschwitz concentration camp) was a Dutch gymnast who competed in the 1908 Summer Olympics.
Jonas Slier was part of the Dutch gymnastics team, which finished seventh in the team event. In the individual all-around competition he finished 96th. There is no evidence that another Jonas Slier, the uncle of Philip Slier was the athlete mentioned above.
This brief starts where responsible research should: with the source description of “Jonas Slier” as dutch gymnast. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as dutch gymnast. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q2176124. The first chronological checks are 1886, 1942 and 1908.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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Three-step research path
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- Expand the search: follow Jonas Slier primary sources, Jonas Slier archive and Jonas research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Jonas Slier” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.