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.
How to Dethatch a Lawn. Two Methods: Mechanical dethatching Manual dethatching. Managing thatch is an important component of maintaining a healthy lawn. Thatch, which is a woven layer of decay resistant stems, roots, rhizomes, and stolons, may prevent a lawn from receiving the proper nutrients and air. If you answered yes, your lawn may have a thatch problem. 2  Use a spade or knife to remove a small section of lawn in a few places around the yard. 3  Measure the thatch layer. 4  If it is greater than 0.5 inches (1 cm), your lawn needs to be dethatched.