Complex sentence: The cocktail umbrella is believed to have arrived on the bar scene as early as 1932 courtesy of Victor Bergeron of Trader Vic's in San Francisco although it is, by Vic's own admission, a presentation picked up from Don the Beachcomber (now closed).
Split into simpler sentences: The cocktail umbrella is believed to have arrived on the bar scene as early as 1932 courtesy of Victor Bergeron of Trader Vic's in San Francisco. Although it is, by Vic's own admission, a presentation picked up from Don the Beachcomber (now closed).