How old is the universe? When did life on earth begin? What happened to the dinosaurs? How was the moon created? How did ancient Chinese science shape the modern world? How did Islam trigger globalization? Are humans really superior to other living things? And how can you fit the complete history of the planet into one pocket-sized book? These are just some of the questions answered in Christopher Lloyd's acclaimed 13.7 billion year history - now in brief. In this thrill-ride across millennia and continents, the complete history of the planet comes to life: from the Earth's fiery birth to its near-obliteration in the Triassic period, and from the first signs of human life to the tentative future of a world with a burgeoning population and a global warming crisis. Covering a wide range of topics including astrophysics, zoology, and sociology, and complete with maps and illustrations, What on Earth Happened? In Brief is the endlessly entertaining story of the planet, life, and people.

克里斯托弗·劳埃德（Christopher Lloyd），曾身为学者在剑桥大学研读历史，任《星期曰泰晤士报》技术栏目的记者。。他与妻子和两个女儿曾在欧洲旅游四个月，有一次他在罗马附近的露营地洗盘子的时候，得到了一个灵感，于是写了《地球简史》。