About the Author

Meredith MacArdle (Author) Meredith MacArdle is a writer and editor living in London. She wrote the timechart sections of the Ponderables series of books on science: The Elements,The Universe, Physics and Mathematics, and is the author of The Timeline History of China and The Timeline History of the Middle Ages among other books.Nicola Chalton (Author) Nicola Chalton has written and contributed to several non-fiction books, including a series on the history of science and philosophy (Philosophers: They Changed the World and Scientists: They Changed the World). She writes historical and biographical features, and is currently writing a book about Victorian Whitby.