A decade ago, US financial services giant Lehman Brothers collapsed. That event triggered the landslide that became the most severe global financial crisis since the 1930s. Draw a line from that moment - Sept 15, 2008 - to all that came next.
The US financial crisis triggered a global recession and a European sovereign debt crisis severe enough to call the very survival of the euro zone into question. It also persuaded China's leaders that economic reform could no longer wait.