International Dylan Thomas Day, observed worldwide every May 14, celebrates the life and legacy of the renowned Welsh poet and writer Dylan Thomas. This day was launched in 2014 by Thomas’s granddaughter, Hanna Ellis, to commemorate the first stage reading of his famous work, Under Milk Wood, in 1953. Events organized by art organizations, cultural centers, schools, and poetry lovers include poetry readings, competitions, book presentations, and literary pub crawls, all aimed at honoring Thomas's contributions to literature. Despite his works being written in English, Thomas is recognized as one of the most significant Welsh poets of the 20th century, with notable pieces such as "Do not go gentle into that good night." Participants can engage by attending events, learning about Thomas's life, or sharing their experiences on social media using specific hashtags.