Why Calcutta is Calcutta

The kolkata ,the city of joy ,where poor to rich all are happy .And kolkata have a golden history ,in my this essays i describe kolkata' history 1700 - 2015 , A history of new comers.I invented those history in the streets of kolkata.If you love bangalis ,kolkata or you have an interest in kolkata's history ,I recommend you .
I dedicated the novel to the streets of kolkata and my elder sister Riya Mukherjee.