Question: When did Assur become the capiral of the Old Assyrian Empire?
Paraphrase: The Old Assyrian Empire adopted Assur as the capital in what year?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q200200 p:P1376 ?s . ?s ps:P1376 wd:Q22948607 . ?s pq:P580 ?value}