Dr. Nitin Tanna ne n'abusua tu kɔɔ Lancaster wɔ afe 1972 mu. Ɛde besi afe a ɛto so ason awiei no, na wanya abasobɔde a ɛtɔ so abien afi Lancaster County Nyansahu Nhyiam no mu, na na ɔpɛ nyansahu mu nhwehwɛmu. Ɔhwɛ kwan sɛ ɔbɛsan akɔ nhyiam no ase bosome yi sɛ ɔtemmufo.