Fort Smith Unveils Plaque Marking City Time Capsule by Arkansas Business Staff Posted 3/4/2013 12:00 am The city of Fort Smith on Thursday unveiled a plaque marking the site of a city time capsule on the west entrance of the Fort Smith Convention Center. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.