The Oxford English Dictionary requires your assistance.
Although many scholars regard the OED as the ultimate authority on dictionaries, the OED requires your assistance. At any given time, the dictionary's editors are researching the history of specific words and phrases, and The OED Appeals allows the public to submit evidence of the earliest record of certain words (via the comments section). Camouflage and Arnold Palmer are two recent entries in the OED, so if you have old books or magazines that mention some strange word, please let the OED know. You might just see your contribution in the next edition of the dictionary.