I want to know the answer to the following question:
When did Rutherford introduce the new name for the Society?
All the background I'm provided with is that "On July 26, 1931, at a convention in Columbus, Ohio, Rutherford introduced the new name—Jehovah's witnesses—based on Isaiah 43:10: "Ye are my witnesses, saith Jehovah, and my servant whom I have chosen"—which was adopted by resolution.". Is that enough to answer the question?