The 'Ka Mate' haka, made famous by New Zealand's rugby team, was composed around 1820 by Te Rauparaha, a chief of the Māori tribe Ngāti Toa, after he escaped from his enemies. In 2014, New Zealand passed a law dedicated to it: any commercial use, public broadcast or film featuring it must state that Te Rauparaha composed it. The law also recognises the tribe as guardian of the haka, without giving it the power to ban its use.
That's the estimate from a WHO-led study published in The Lancet in 2024, covering the half-century since the Expanded Programme on Immunization was launched in 1974. It works out to about six lives saved every minute, mostly infants. The measles vaccine alone accounts for around 60% of those lives.
According to the World Gold Council, about 216,000 tonnes of gold have been mined in all of human history. Because gold is so dense (19.3 tonnes per cubic metre), it would fit in a cube about 22 metres on each side, roughly the height of a seven-storey building. Strikingly, about two-thirds of it has been mined since 1950.