On 24 September 1942, Wilhelm took the ingot to Spedding at the Metallurgical Laboratory in Chicago and presented it to Compton, whose first reaction was of disbelief.
September 1942, Wilhelm took the ingot to Spedding at the Metallurgical Laboratory in Chicago. This was on 24. September 1942, Wilhelm presented it to Compton. This was on 24. Compton's first was of disbelief.