1998: US President Bill Clinton opens a State visit to China in Tiananmen Square, where a protest movement for democracy was brutally suppressed nine years earlier.

2008: South Korea lifts its ban on US beef imports and President Lee Myung-bak urges the country to move past the dispute that has paralysed his Government with weeks of tumultuous protests.

In deciding its first cases on the issue, the US Supreme Court gives the nation's legally married gay couples equal federal footing with all other married Americans and also cleared the way for same-sex marriages to resume in California.

2014: The leaders of Britain, France, Germany and other European nations commemorate the 100th anniversary of World War I and vow to preserve peace on the continent.

The Supreme Court says President Trump can forge ahead with a limited version of his ban on travel from six mostly Muslim countries.