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  2. Secretariat of Environment and Natural Resources - Wikipedia

    en.wikipedia.org/wiki/Secretariat_of_Environment...

    The Secretariat of Environment and Natural Resources (in Spanish: Secretaría del Medio Ambiente y Recursos Naturales, SEMARNAT) is Mexico's environment ministry.Its head, the Secretary of the Environment and Natural Resources, is a member of the federal executive cabinet and is appointed by the President of Mexico.

  3. Julian calendar - Wikipedia

    en.wikipedia.org/wiki/Julian_calendar

    The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts of Oriental Orthodoxy as well as by the Amazigh people (also known as the Berbers).

  4. Adoption of the Gregorian calendar - Wikipedia

    en.wikipedia.org/wiki/Adoption_of_the_Gregorian...

    The Lutheran Duchy of Prussia, until 1657 still a fiefdom of Catholic Poland, was the first Protestant state to adopt the Gregorian calendar. Under the influence of its liege lord, the King of Poland, it agreed in 1611 to do so.

  5. Revised Julian calendar - Wikipedia

    en.wikipedia.org/wiki/Revised_Julian_calendar

    The Revised Julian calendar, or less formally the new calendar and also known as the Milanković calendar, is a calendar proposed in 1923 by the Serbian scientist Milutin Milanković as a more accurate alternative to both Julian and Gregorian calendars.

  6. Gregorian telescope - Wikipedia

    en.wikipedia.org/wiki/Gregorian_telescope

    The Gregorian telescope consists of two concave mirrors: the primary mirror (a concave paraboloid) collects the light and brings it to a focus before the secondary mirror (a concave ellipsoid), where it is reflected back through a hole in the centre of the primary, and thence out the bottom end of the instrument, where it can be viewed with the aid of the eyepiece.

  7. Chant (Benedictine Monks of Santo Domingo de Silos album)

    en.wikipedia.org/wiki/Chant_(Benedictine_Monks...

    Chant is a compilation album of Gregorian chant, performed by the Benedictine monks of Santo Domingo de Silos in Spain.. The performances were recorded perhaps as early as the 1970s, either in the province of Burgos or in Madrid, the Spanish capital. [1]

  8. Julio Abril - Wikipedia

    en.wikipedia.org/wiki/Julio_Abril

    Julio Abril was born in Moniquirá on 20 August 1911. He studied in 1928 at the Salesian school Central Technical Institute of Bogotá and during 1929 was the student of Colombian cartoonist Lisandro Serrano's mother in Moniquirá.