A Universal Calendar


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The Time Book


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What is time? When did we first use it? Does it always work? How do animals tell time? A fun and fascinating look at time from the first calendars and clocks to the digital watches and precise time-keeping methods of today.




A Calendar of Wisdom


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This collection of daily thoughts to nourish the soul from the world’s sacred texts by Leo Tolstoy feature gems of inspiration and wisdom—author Thomas Keneally calls this book “transcendent, and that we are grateful he lived long enough to endow us with his grand inheritance.” This is the first-ever English-language edition of the book Leo Tolstoy considered to be his most important contribution to humanity, the work of his life's last years. Widely read in pre-revolutionary Russia, banned and forgotten under Communism; and recently rediscovered to great excitement, A Calendar of Wisdom is a day-by-day guide that illuminates the path of a life worth living with a brightness undimmed by time. Unjustly censored for nearly a century, it deserves to be placed with the few books in our history that will never cease teaching us the essence of what is important in this world.




A New History of Modern Computing


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How the computer became universal. Over the past fifty years, the computer has been transformed from a hulking scientific supertool and data processing workhorse, remote from the experiences of ordinary people, to a diverse family of devices that billions rely on to play games, shop, stream music and movies, communicate, and count their steps. In A New History of Modern Computing, Thomas Haigh and Paul Ceruzzi trace these changes. A comprehensive reimagining of Ceruzzi's A History of Modern Computing, this new volume uses each chapter to recount one such transformation, describing how a particular community of users and producers remade the computer into something new. Haigh and Ceruzzi ground their accounts of these computing revolutions in the longer and deeper history of computing technology. They begin with the story of the 1945 ENIAC computer, which introduced the vocabulary of "programs" and "programming," and proceed through email, pocket calculators, personal computers, the World Wide Web, videogames, smart phones, and our current world of computers everywhere--in phones, cars, appliances, watches, and more. Finally, they consider the Tesla Model S as an object that simultaneously embodies many strands of computing.




Caesar’s Calendar


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Calendars in Antiquity


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Calendars were at the heart of ancient culture and society and were far more than just technical, time-keeping devices. Calendars in Antiquity offers a comprehensive study of the calendars of the ancient Mediterranean and Near Eastern world, from the origins up to and including Jewish and Christian calendars in late Antiquity.




Calendrical Calculations


Book Description

An invaluable resource for working programmers, as well as a fount of useful algorithmic tools for computer scientists, astronomers, and other calendar enthusiasts, The Ultimate Edition updates and expands the previous edition to achieve more accurate results and present new calendar variants. The book now includes coverage of Unix dates, Italian time, the Akan, Icelandic, Saudi Arabian Umm al-Qura, and Babylonian calendars. There are also expanded treatments of the observational Islamic and Hebrew calendars and brief discussions of the Samaritan and Nepalese calendars. Several of the astronomical functions have been rewritten to produce more accurate results and to include calculations of moonrise and moonset. The authors frame the calendars of the world in a completely algorithmic form, allowing easy conversion among these calendars and the determination of secular and religious holidays. LISP code for all the algorithms is available in machine-readable form.