CLIL (Content and Language Integrated Learning) is an educational approach that teaches additional language through content subjects. It began in 1994 but has roots in ancient Iraq. Globalization increased demand for CLIL in the 1990s. Younger generations are more accustomed to integrated technologies. CLIL uses content classes to teach language and language classes to teach content. It focuses on developing content, language, and learning skills. Various CLIL models exist including language showers, camps, exchanges, and total immersion programs. Challenges include overcoming misconceptions and lack of trained teachers and materials.