Margaret Thatcher, famously known as the “Iron Lady” due to her tough-as-nails personality, was not only Britain’s first female prime minister, but one of the most influential political leaders of the 20th century. She commanded the spotlight at a crucial moment in both British and world history. Although she had her problems along the way—dealing with the Cold War, incursions at the Falkland Islands, and attacks by the IRA, at one point almost losing her life in the process—she rose to the occasion.

Long before Australia started to be considered one of the best places in the world to live, it was thought to be completely unlivable. In the 15th century, the European race to claim land began. Despite the fact that Australia was a large landmass, no nation believed it was worth colonizing. The land was claimed by the Netherlands. However, little exploration happened there. Many countries actually believed it to be uninhabitable. However, the Aboriginal populations had already been thriving on the land for millennia.

During the 1960s and 1970s, the images of two men came to dominate the iconography of left-wing movements: Fidel Castro and Che Guevara. The story of the revolution these two men led in Cuba became a fable that drove and encouraged other revolutionary movements around the world. The Cuban Revolution is certainly astonishing. Beginning with fewer than 100 armed men, the Fidelistas took on a government that had a well-equipped army, air force, and navy. On paper, the handful of rebels stood no chance.

Since the Polynesians (the first humans in New Zealand who would become known as the Māori) were the most modern humans to settle in an uninhabited land, it is no surprise New Zealand has always been ahead of its time. Despite its late settlement, New Zealand has been one of the most rapidly modernizing nations in the world. New Zealand was the first country to introduce full democracy, women’s suffrage, state pensions, and state housing.

London was a tinderbox waiting to ignite. An unusually hot and dry summer had drained the city’s water supplies, and without an organized firefighting force, its citizens were left to fend for themselves. The stage was set for catastrophe, and in the early hours of Sunday, September 2, 1666, the spark was struck. A seemingly inconsequential fire ignited in a baker’s shop on Pudding Lane. Unchecked and underestimated, it would grow to become one of the most devastating disasters London had ever faced.