Timeline - Trump questions then honours "one China" policy

A combination of file photos showing Chinese President Xi Jinping (L) in London's Heathrow Airport, October 19, 2015 and (R) U.S. President Donald Trump listening to questions from reporters in New York, U.S., January 9, 2017. REUTERS/Toby Melville/Mike Segar/File Photos

(Reuters) - U.S. President Donald Trump agreed to honour the longstanding "one China" policy in a phone call with Chinese President Xi Jinping, a major diplomatic boost for Beijing which brooks no criticism of its claim to neighbouring Taiwan.

The following are some of the major developments in U.S.-Sino relations since Trump won the U.S. presidential election in November.