Roses have been featured in art, literature, music, and religion since early times. Garden roses were cultivated as early as 4000 B.C. in Egypt. Most roses cultivated today are hybrids of early species. Hundreds of varieties have been developed through the selection and hybridization of Old World species. The most popular group consists of the hybrid tea roses, which have a wide color range, unique fragrance, and continuous bloom throughout the growing season. Other commonly grown groups are the floribunda, with numerous petals; polyanthas, with large clusters of flowers; miniatures, with the entire plant no more than 12 inches high; and rambling or climbing roses.