Dutch explorers are the first Europeans to visit Tonga.
Tonga becomes a British protected state, but it is not formally colonized.
Tonga receives greater autonomy from Britain.
Tonga becomes fully independent within the British Commonwealth.
Tonga is admitted to the World Trade Organization.
Riots erupt in Nuku'alofa, Tonga's capital city, in protest to the lack of democratic reforms. As a result of the protests, much of the business district is destroyed.