The Abbe Limit is a fundamental principle in optics that defines the maximum resolution achievable by a microscope. It is determined by the wavelength of light used and the numerical aperture of the microscope's objective lens. The limit indicates that there is a minimum distance between two points that can be distinguished as separate entities. This concept is crucial for understanding the capabilities of optical microscopes, as it sets a boundary on how small details can be observed. The Abbe Limit is named after the German physicist Ernst Abbe, who contributed significantly to the field of microscopy in the late 19th century.