WHEN a young couple decided to go on a backpacking adventure with nothing but £400 in their pockets, they had no idea how they would soon change the world.
Back in 1972, Tony and Maureen Wheeler went on a journey of ups and downs to get from London to the shores of Australia in six months without spending thousands.
And once they got there, they started a simple side hustle: writing a travel book called Across Asia on the Cheap.
It was the first book in the Lonely Planet series of travel guides. And this company eventually became a publishing empire with over 150 million guidebooks.
It was sold for a reported £130 million at the end of the 2000s, according to BBC News.