{"entity":{"id":"1899","kind":"year","name":"1899 in oncology","aka":["1899"],"tldr":"Everything OnCo dates to 1899: 2 entries, 2 landmarks. Each line links to the record it was read from, so the year is a view of the corpus rather than a second copy of it.","summary":"2 dated entries in OnCo fall in 1899: 2 landmarks.\n\nOf those, 2 to the year only. Most of the corpus dates a fact to the year, because that is what the source it was read from gives; regulatory events and the readout calendar are the parts that carry a full date.\n\nEverything on this page is generated from the other records. It holds no fact of its own, and it changes when they do.","asOf":"2026-09-25","links":[],"tags":[],"related":["1898","1900"],"cancers":[],"sections":[],"technologies":[],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":["Generated from every dated field in the corpus, not written by hand. The groups and the fields behind them are listed in src/lib/year-groups.ts; the reader is src/lib/years.ts."],"year":1899,"events":[{"group":"history","date":"1899","precision":"year","title":"Halsted resects an ampullary cancer","note":"Ampullary cancer (ampulla of Vater). First successful local resection of a periampullary tumour.","from":"ampullary","refs":[]},{"group":"history","date":"1899","precision":"year","title":"Max Wilms's monograph on mixed tumours of the kidney","note":"Wilms tumour (nephroblastoma)","from":"wilms-tumor","refs":[]}]},"route":"/years/1899/","neighbours":{"year":[{"id":"1898","kind":"year","name":"1898 in oncology","route":"/years/1898/"},{"id":"1900","kind":"year","name":"1900 in oncology","route":"/years/1900/"}]}}