A lot has changed over the past 60 years right around the world — and perhaps nowhere more dramatically than in Papua New Guinea's rugged highlands.
Even in the 1950s, hundreds of tribes were living in total isolation from the rest of the country, let alone the world.
But in 1957, things changed when Australian patrol officers, or Kiaps, introduced the Goroka Show; a chance for dozens of groups to come together from across the region, to show off their traditional dress and dances, known as singsings.
This year marks the 60th event in the show's history, and in 2016, it brought together an eclectic mix of cultural groups from right across the country.
Back in 1957, the idea of the first Goroka Show came from the ruling Kiaps as a competition to see who was the best organised and administered district.
The event soon became a showcase for the traditional dress of Papua New Guinea's many tribes and language groups.
The Mudmen from the lush, green Asaro valley just outside Goroka, are a popular part of the show.
Their masks are made from a special clay that dries in the sun in just a few days — no two masks are ever the same, with some men designing them as monkeys, others skeletons.
The objective they say is to make the enemies afraid.
Stories of how the Mudmen came to be are varied. One story says their ancestors had escaped to a nearby village, after being attacked by their enemies.
When they emerged they were covered in white clay, scaring the enemies who had mistaken them for spirits.
But some anthropologists disagree, believing the idea was entirely made up by the village leader in 1957, when the organisers of the very first Goroka Show requested for his people to take part in the extravaganza.
Cultural celebration reflects the face of a changing nation
The Goroka Show in 2016 is a hot, loud sea of colour, with enormous headdresses made up of feathers, and painted faces and bodies.
Joachim Kaugla, 75, is a retired Catholic teacher born in a village near PNG's tallest mountain, Mt Wilhelm, during World War II.
Joachim went to his first Goroka Show in 1961, and believes the show is just as important today as it was in 1957, giving Papua New Guineans the chance to learn about each others cultures.
But he has some gripes about the changes he has witnessed over the past 60 years.
"Special dressing used really pure materials from the bush, their own bush ... and they prepare it for dress up and show," he said.
"Nowadays ... they've mixed up with the materials from the factories, overseas materials ... we have seen that is not nice."
Some groups at this year's show even had traditional Kundu drums — normally meticulously carved out of wood and covered with lizard skin — made from plastic pipes instead, covered in more plastic.
Inside the traditional woven bilums worn by some women were bags of foreign chips and foreign-made soft drinks.
While the Goroka Show may be evolving just like PNG is, elders like Joachim say it does need to stay for the next 60 years and beyond.
"The show is very, very important to teaching other people what's culture," he said.
"Sharing and laughing, respecting, all these things come from the soul."