Your property tax bill is based on the assessed value of your property, any exemptions you qualify for and a property tax rate. The assessed value of your property is determined on a certain date.
Although these techniques were strictly controlled by imperial decree, eventually silkworms were smuggled out to establish sericulture in Korea, Japan, and India. It seems to be first produced in China around 3000 BC. Silk was spun in ancient China from silkworms (b<i>ombyx mori</i>) as early as 5000 BC. Over the period from 2700 BC to 1600 BC, domestication techniques enabled extensive production of silk thread and cloth.
Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).ilk is described in a chapter on mulberry planting by Si Shengzhi of the Western Han (206 BC â 9 AD). There is a surviving calendar for silk production in an Eastern Han (25â220 AD) document. The two other known works on silk from the Han period are lost.