The Roman numeral "MCDLXXIII" represents the number 1473. In this numeral, "M" stands for 1000, "CD" indicates 400 (500 minus 100), "L" represents 50, "XX" signifies 20, and "III" stands for 3. When combined, these values total 1473. The year 1473 is notable in history for several reasons. It is the birth year of the famous astronomer Nicolaus Copernicus, who later proposed the heliocentric model of the solar system. This year also falls within the Renaissance period, a time of significant cultural, artistic, and scientific advancements in Europe.