The term serf, in the sense of an unfree peasant of the Russian Empire, is the usual translation of krepostnoi krestyanin (ÐºÑÐµÐ¿Ð¾ÑÑÐ½Ð¾Ð¹ ÐºÑÐµÑÑÑÑÐ½Ð¸Ð½). The origins of serfdom in Russia are traced to Kievan Rus' in the 11th century. Legal documents of the epoch, such as Russkaya Pravda, distinguished several degrees of feudal dependency of peasants.
Thatching is the craft of building a roof with dry vegetation such as straw, water reed, sedge (Cladium mariscus), rushes, or heather, layering the vegetation so as to shed water away from the inner roof. It is a very old roofing method and has been used in both tropical and temperate climates.hatching methods have traditionally been passed down from generation to generation, and numerous descriptions of the materials and methods used in Europe over the past three centuries survive in archives and early publications.
Scarification or de-thatching of lawns or turf is a mechanical process whereby the surface and subsurface of the lawn, green or sports pitch is rigorously abraded by penetrating metal blades, tines or prongs.hatch is a build-up of organic matter which can include dead grass, leaves, stems, stolons, rhizomes and overcrowded grass roots and lateral weed growth. Thatch can stifle the growth and health of grass or turf.