Sara Teasdale and Amy Lowell were two American poets who were contemporaries in the early 20th century. They were both part of the Imagist movement, which focused on writing concise, direct poetry. Teasdale and Lowell were friends and collaborators, often exchanging ideas and works. Teasdale was known for her romantic and lyrical poems, while Lowell was known for her more experimental and modernist works. Together, they helped to shape the landscape of modern poetry.