The first General Assembly of the United Nations opens.
51 nations were represented on that day.
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The United Nations declared Matej Gaspar as the five billionth person in the world.
The UN reported that one million plant and animal species were at risk of extinction.
The longest ever United Nations climate talk ended.
The country of Georgia joined the United Nations shortly after the country became independent.
UNESCO recommended that Australia's Great Barrier Reef be listed as World Heritage Site 'in danger.'
