Samuel ha-Naguid was a Jew who, in the 11th century, became a diplomat trusted by a Muslim king in Al-Andalus. "He is an example of how contact on a basis of relative equality and interaction reduce prejudice, and an example of the human capacity to get along," says Australian philosopher Roman Krznaric (Sydney, 1971). "Edo, which is now known as Tokyo, was a Japanese city in the 18th century that didn't throw anything away," he explains. Everything was repaired, reused, or transformed into something else. And they managed to regenerate the forests in a society where wood was like oil is today. "It was the first ecological civilization in history," he adds. If it hadn't been for the Jamaican slave rebellion, the struggles for the abolition of slavery in British territories would have dragged on indefinitely. These are some of the examples Krznaric offers in his essay. History for tomorrow. Looking to the past to walk towards the future (Captain Swing).