{"entity":{"id":"1881","kind":"year","name":"1881 in oncology","aka":["1881"],"tldr":"Everything OnCo dates to 1881: 1 entry, 1 landmark. 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":"1 dated entry in OnCo fall in 1881: 1 landmark.\n\nOf those, 1 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":["1880","1882"],"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":1881,"events":[{"group":"history","date":"1881","precision":"year","title":"Billroth performs the first successful gastrectomy for cancer","note":"Gastric & gastro-oesophageal junction cancer","from":"gastric","refs":["robotic-surgery"]}]},"route":"/years/1881/","neighbours":{"year":[{"id":"1880","kind":"year","name":"1880 in oncology","route":"/years/1880/"},{"id":"1882","kind":"year","name":"1882 in oncology","route":"/years/1882/"}]}}