Christmas trees made of feathers and Christmas tree decorations of all types are popular with collectors. The first decorated Christmas tree in America is claimed by many states, including Pennsylvania (1747), Massachusetts (1832), Illinois (1833), Ohio (1838), and Iowa (1845). The first glass ornaments were imported from Germany about 1860. Dresden ornaments were made about 100 years ago of paper and tinsel. Germany developed the first artificial Christmas tree in the 19th century. Manufacturers in the United States were making ornaments in the early 1870s. Electric lights were first used on a Christmas tree in 1882. Character light bulbs became popular in the 1920s, bubble lights in the 1940s, twinkle bulbs in the 1950s, plastic bulbs by 1955. A Christmas light is a holder for a candle used on the tree. Other forms of lighting include light bulbs. Other Christmas memorabilia is listed in the Christmas section.