A thrice-weekly digest, replete with #Cubs, #MLB, and #MiLB factoids, gathered from reputable sources. Fred Merkle memorialized. On Mondays, Wednesdays, and Fridays, Bleed Cubbie Blue is pleased to present a light-hearted, Cubs-centric look at baseball’s colorful past, with plenty of the lore and various narratives to follow as they unfold over the course of time. Here’s a handy Cubs timeline, to help you follow along. We also include Cubs’ player birthdays and a bit of world history, for context. Today in baseball history: 1845 – The Knickerbocker Base Ball Club is formed, and Alexander Cartwright’s 20 rules, presented on September…