The Fifty Odes

The reader of this book may ask: What was the reason to put the number 50 in the title of the book?
The number 50 is an auspicious number with importance in both everyday life and higher mathematics. People celebrate milestone 50th birthdays and 50th anniversaries with more pomp than they do other year markers. Half of a century is 50 and is a denomination of coins and paper money in most of the countries. When people write best-of of worst-of lists, they often try to select an even 50 items...