Question: Since 1830-8-28, what has caused their wage?
Paraphrase: Since 1830-8-28, what has caused their wage?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q6821213 wdt:P1542 ?answer . ?answer wdt:P580 ?x FILTER(contains(YEAR(?x),'1830'))}
Answer: Swing Riots