The Russians are an East Slavic ethnic group indigenous to Eastern Europe, who share a common Russian ancestry, culture, and history. Russian, the most spoken Slavic language, is the shared mother tongue of the Russians; Orthodox Christianity has been their majority religion since the formation of a Russian identity in the Middle Ages. They are the largest Slavic nation and the largest European nation.
East Slavic tribes and peoples, 8th–9th century
The Baptism of Kievans, by Klavdy Lebedev
Grandma's Fairy Tales, by Vassily Maximov
Ethnic Russians in former Soviet Union states in 1994
Russian is an East Slavic language, spoken primarily in Russia. It is the native language of the Russians and belongs to the Indo-European language family. It is one of four living East Slavic languages, and is also a part of the larger Balto-Slavic languages. It was the de facto and de jure official language of the former Soviet Union. Russian has remained an official language in independent Russia, Belarus, Kazakhstan, Kyrgyzstan, and Tajikistan, and is still commonly used as a lingua franca in Ukraine, Moldova, the Caucasus, Central Asia, and to a lesser extent in the Baltic states and Israel.
This page from an "ABC" book printed in Moscow in 1694 shows the letter П.
The Ostromir Gospels of 1056 is the second oldest East Slavic book known, one of many medieval illuminated manuscripts preserved in the Russian National Library.