Oak apple due to the superficial resemblance and the preponderance of the oak marble gall in the wild. Other galls found on oak trees include the oak artichoke gall and the acorn cup gall, but each of these has its own distinctive form. Some common oak-apple-forming species are the "Biorhiza pallida" gall wasp in Europe, "Amphibolips confluenta" in eastern North America, and "Atrusca bella" in western North America. Oak apples may be brownish, yellowish, greenish, pinkish, or reddish. Oak galls have been used in the production of ink since at least the time of the Roman Empire. From the Middle Ages to
Apple Day Apple Day Apple Day is an annual celebration of apples and orchards, held in October. It is celebrated mainly in the United Kingdom. It traditionally falls on 21 October, the date of the first such event in 1990, but events are held throughout the month. It is commonly a weekend event, usually taking place on the Saturday and Sunday closest to 30 October. Apple Day events can be large or small, from apple games in a garden to large village fairs with cookery demonstrations, games, apple identification, juice and cider, gardening advice, and the sale of many hundreds of apple