• 1202 ⪢⪢
At the same time, a fourth crusade, initially sent to the Holly Land, is diverted to Constantinople. The city is besieged and then pillaged. The Byzantine Empire finds itself divided and Kievan Russia loses an important ally. ￫ divert, besiege, pillage
http://qindex.info/i.php?x=17650

• 1202 Leonardo Fibonacci
Fibonacci asked himself how many pairs of rabbits originated from a single pair in one year. Each pair of rabbits will produce exactly one more pair of both sexes per month which in turn would be fertile from the second month after birth.
http://qindex.info/i.php?x=4759

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