High blood pressure in pregnancy can be classified as pre-existing hypertension, gestational hypertension or pre-eclampsia. Pre-eclampsia is a serious condition of the second half of pregnancy and following delivery characterised by increased blood pressure and the presence of protein in the urine.
In 1377, the first movable metallic types were invented in Goryeo Dynasty in Korea, which were used to print Jikjishimcheyojeol or simply Jikji, which is the oldest extant movable metal print book. The printing press was introduced to the West in the Holy Roman Empire by Johannes Gutenberg, around 1440. Gutenberg, a goldsmith by profession, devised a hand mould to create metal movable type, and adapted screw presses and other existing technologies, to create a printing system.
In the late eighteenth century and early nineteenth century, inventors began modifying the printing press by making parts of the press out of metal instead of wood. Earl Stanhope of England created a printing press with a cast-iron frame. In 1800, he invented the Stanhope Press, which was the first book press made completely out of cast-iron. The press also featured a combination of levers to give the pressman added power. It created powerful, cleaner impressions, which were ideal for printing woodcuts and larger formats.