The Rani Rashmoni founding narrative (1847-1855)
Rani Rashmoni (1793-1861; zamindar of Janbazar, Kolkata; financially independent after being widowed in 1836) received a darshan-vision in 1847 CE before her planned Varanasi pilgrimage: the goddess Kali directed her to build the temple. During 1847-1855 CE on a ~20-acre plot on the east bank of the Hooghly, the temple was built at ~Rs.9 lakh; consecrated and idol installed on 31 May 1855. (Wikipedia + redzambala multi-source consensus)
