On 01 August 2008, China did what no other country on Planet Earth did — operate trains at 350 km/h (217 mph). On 23 July 2011, the horrendous Wenzhou crash happened, killing 40. The then-head of the mainland Chinese railway authorities, Sheng Guangzu, had little recourse but to ask the prime minister to lower speeds to 300 km/h (186 mph).
Sheng retired in late 2016. However, it was under his administration that work started in earnest on an “all-Chinese” trainset, the CR Revival Express (a train which was also made inherently safer and better at higher speeds).
That very same screamer sped out of Beijing South in the morning hours of 21 September 2017, with yours truly onboard Train G1. Top speed reached 350 km/h (217 mph). Once again, China had the world’s fastest train. ▶