Zero and 180th meridians divide the globe into the eastern and western hemispheres. Moving from the Greenwich meridian eastward to the 180th meridian, we will be in the Eastern Hemisphere. If, on the contrary, to the west of the Greenwich meridian, then until the 180th meridian we will be in the Western Hemisphere.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.