Elizabethan sonnets are a form of poetry that originated during the reign of Queen Elizabeth I, characterized by their specific structure and themes. Typically, these sonnets consist of 14 lines written in iambic pentameter and follow the rhyme scheme ABABCDCDEFEFGG. This format is often associated with love and beauty but can also delve into deeper themes such as time and mortality, making them a key component of both personal expression and literary exploration during the period.