New Moon: The moon is not visible in the sky. Except during a solar eclipse, Waxing Crescent: The moon is less than one-half illuminated by the sun but less than one quarter illuminated. Occurs when the moon's illumination is increasing, First Quarter: The moon is one-half illuminated by the sun. Occurs when the moon's illumination is increasing, Waxing Gibbous: The moon is more than one-half illuminated by the sun but not completely illuminated. Occurs when the moon's illumination is increasing, Full Moon
Preservationist is generally understood to mean historic preservationist: one who advocates to preserve architecturally or historically significant buildings, structures, objects or sites from demolition or degradation.
Preservation (library and archival science) Preservation refers to the set of activities that aims to prolong the life of a record and relevant metadata, or enhance its value, or improve access to it through non-interventive means. This includes actions taken to influence records creators prior to selection and acquisition. It should be distinguished from conservation-restoration of cultural heritage, which refers to the treatment and repair of individual items to slow decay or restore them to a usable state. Conservation is occasionally