Question: What year did Frank Vardon's Hot Video trade journal stop awarding the Hot d'Or award?
Sentence (from "Journal für praktische Chemie"): From 1879 to 1884 Ernst von Meyer worked as co-editor under Kolbe and became editor-in-chief upon Kolbe's death in 1884 and continued in that capacity until his own death in 1916.
Relevant evidence: No