FTP, name this region of central Europe that makes up the westernmost two-thirds of the Czech Republic.
Its name derives from a Celtic tribe that was expelled by the Macromanni circa 400 AD.  Vratislav II was the first to obtain the region's title of King, and success struck in 1355, when this region's king was elevated to Holy Roman Emperor as Charles IV.  Cyril and Methodius came west from Moravia to introduce Christianity to this historical country.  A nationalist revival was suppressed in 1848, and it is now the largest part of its present country.  FTP, name this region of central Europe that makes up the westernmost two-thirds of the Czech Republic.
Its name derives from a Celtic tribe that was expelled by the Macromanni circa 400 AD.  
Bohemia