Navadvīpa—the topmost holy place, ninety miles north of Calcutta. In the 15th and 16th centuries the city became the greatest center of Sanskrit learning in all of India. Lord Caitanya, the yuga-avatāra, appeared there in the late 15th century and propagated the chanting of the Holy Names all over India. His appearance made Navadvīpa the crest jewel of all holy places in the present age.