What does the date range mean? It's obviously not his life span.

"In 1855 he undertook a counterpoint course in Vienna with the leading theorist, Simon Sechter; the same year he was appointed organist at Linz Cathedral."
http://w3.rz-berlin.mpg.de/cmp/bruckner.html

"Stadtpfarrorganist" Town church organist, or something like that. He was organist there from 1856 to 1868.

one of the main venues of the Ars Electronica is the Brucknerhaus on the banks of the Danube...