The term 'ERAS' refers to the Gay '90s, Roaring '20s, and other periods of time. The Gay '90s was a period in the late 19th century that was characterized by a feeling of optimism and progressivism. The Roaring '20s was a period in the early 20th century that was marked by economic prosperity, technological advances, and a cultural revolution. Both of these ERAS were known for their unique styles of music, fashion, and art. Other ERAS mentioned in the term 'ERAS' could include the Victorian era, the Jazz Age, or the Great Depression.