Slavs
Slavs are an Indo-European ethno-linguistic group who speak the various Slavic languages of the larger Balto-Slavic linguistic group. They are native to Eurasia, stretching from Central, Eastern, and Southeastern Europe all the way north and eastwards to Northeast Europe, Northern Asia (Siberia), the Caucasus, and Central Asia (especially Kazakhstan and Turkmenistan) as well as historically in Western Europe (particularly in East Germany) and Western Asia (including Anatolia). From the early 6th century they spread to inhabit the majority of Central, Eastern and Southeastern Europe. Today, there is a large Slavic diaspora throughout North America, particularly in the United States and Canada as a result of immigration.
Catholic Slavs
Catholic Slavs and Slavic Catholic are terms used for the historically and/or predominantly Catholic Slavic ethnic groups and nations and for the history of Catholicism among the Slavic peoples; especially amongst the West Slavs. The Catholic Slavic nations include all West Slavs (Poles, Czechs and Slovaks and all their sub-ethnicities ex. Kashubs, Silesians) as well as the westernmost South Slavs (Slovenes and Croats).