Question: In what year was the mother of Theodosia Burr Alston born?
Sentence (from "Sangob Rattanusorn"): Perhaps the best year in his badminton career, however, came toward the end of it in 1973, when he helped Thailand to a surprise victory over Malaysia in the Asian zone final of Thomas Cup before bowing to perennial champion Indonesia in the inter-zone ties.
Relevant evidence: No