Source labels
"Primary technical source" means a patent or comparable original technical document. "Primary claim source" means Lakhovsky's own article, pamphlet, or book states the claim. "Contemporary press" means a newspaper or periodical repeated or summarized a claim at the time. "Modern secondary" means a later reproduction or interpretation that needs provenance work.
FAQ
Why separate claims from evidence?
Because a patent, a book claim, a newspaper story, and an independent clinical record prove different things.
Are modern replications primary sources?
No. They can be useful for provenance research, but they should not be treated as direct evidence for Lakhovsky-era claims unless tied to an original document.
Can I use this timeline offline?
Yes. The filtering runs entirely in the browser after the page loads.