MARGAO: Rachol Seminary, in collaboration with Dakshinayan Abhiyan organised a public lecture on the teachings of Swami Vivekananda on Tuesday, the anniversary of the day Vivekananda gave his historic speech at Chicago, USA, 125 years ago. Before leaving for Chicago, Vivekananda had visited the Seminary and spend three days at the library of the Seminary researching Christianity. He had also met professors and seminarians to further understand the religious teachings of Christianity.