The 2005 San Marino 2 euro commemorative coin celebrates the International Year of Physics, honouring the life and scientific contributions of Galileo Galilei. The national side features a detailed portrait of the renowned Italian astronomer and physicist, whose work fundamentally transformed humanity's understanding of the universe. By selecting Galileo for this commemorative issue, San Marino highlights its cultural and historical proximity to the Italian intellectual tradition and its commitment to the advancement of scientific knowledge. The design serves as a tribute to the revolutionary observations that laid the foundations for modern classical mechanics and observational astronomy. This commemorative coin was issued in 2005.