Question: What Lebesgue integration etymology died in 1942-7-26?
Paraphrase: What Lebesgue integration historical underpinnings passed on in 1942-7-26?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q853831 wdt:P138 ?answer . ?answer wdt:P570 ?x FILTER(contains(YEAR(?x),'1942'))}