CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins85% CONFIDENCEOverall confidence: 85%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
Happened as dated, per sabr.org[4]: "April 9, 1965: Astros beat Yankees in first game inside the Houston Astrodome."The Houston Astrodome, the world's first fixed-roof, air-conditioned multipurpose stadium, opened on 9 April 1965 with an exhibition game between the Astros and Yankees — though it's stood closed and searching for a new use since 2008.
$35M
1.00