In which country were the compass, paper, silk fabrics invented?

Scientists believe that the compass, silk threads and paper were invented in China.
The history of the creation of these things is interesting. Since more than one century has passed since the inventions, it is difficult to judge the reliability of the facts. However, studying the written sources of China, scientists came to the conclusion that the amazing properties of the magnetic field were noticed in this country. Observations in this area made it possible to create the first compass – a device that determines the position of the Earth’s magnetic pole. But, the compass was used as intended much later. During the reign of the Han Dynasty, it was used as an object for divination.
Everyone knows that the Ancient Egyptians wrote on specially treated stems of a tall plant – papyrus. European countries on animal skins. Russia used birch bark. And what was the surprise of Western countries when merchants from the East brought an amazing product – paper. Tsai Lun invented it in the first century AD. The technology turned out to be simple: thin sheets were rolled out of water and bamboo mixed into gruel and dried, achieving a solid state of their surface. Thus, China was several centuries ahead of other countries in the invention of a convenient means for writing, which is used to this day.
It is easy to guess about silk threads, which are obtained from silkworm cocoons, if you know about the Great Silk Road, which once connected the West and the East and established relations between two civilizations through trade.