From an unassuming podcasting company to a cultural phenomenon to the eve of a blockbuster IPO, the story of Twitter is well-known throughout the Valley and beyond. But this video offers unique perspectives from Twitter’s key investors, like Chris Sacca and Fred Wilson, and entrepreneurs who worked with the company’s founders and principals over the years, like Instagram’s Kevin Systrom and Evernote’s Phil Libin.

In the clips, culled from our PandoMonthly event series, a number of questions are raised including, “How big of a mistake was losing Instagram?” “Just how important to society is Twitter?” “How will Twitter’s IPO compare to Facebook’s?”

As we prepare this morning for the company’s big IPO day, enjoy this inside look at one of the era’s defining technology companies:

[Video edited by David Holmes, Music via Jonathan Rich on SoundCloud]