Elon Musk's bumpy road to possibly owning Twitter: A timeline

A board seat accepted and then rejected. A stunning $44 billion takeover offer with uncertain financing. And a surprise early morning tweet putting the deal on hold, temporarily.

Even by the standards of Twitter, a company that has known plenty of chaos and dysfunction in its history, the weeks-long effort by billionaire Elon Musk to buy the company has proven to be uniquely tumultuous -- and there's no clear end in sight.