Russian leaders are called Czars showing influence from what place?​

Development of term The word "czar" is of Slavic origin, etymologically originating from the name "Caesar", as with the word 'tsar,' a title of sovereignty, first created and used by the First Bulgarian Empire. The title was later adopted and used by the Serbian Empire and Tsardom of Russia.

Explanation:

Tsar (/zɑːr, sɑːr/ or /tsɑːr/), also spelled czar, tzar, or csar, is a title used to designate East and South Slavic monarchs or supreme rulers of Eastern Europe, originally the Bulgarian monarchs from 10th century onwards,[citation needed] much later a title for two rulers of the Serbian Empire,[citation needed] and from 1547 the supreme ruler of the Tsardom of Russia and the Russian Empire.[citation needed] In this last capacity it lends its name to a system of government, tsarist autocracy or tsarism. The term is derived from the Latin word caesar,[2] which was intended to mean "emperor" in the European medieval sense of the term—a ruler with the same rank as a Roman emperor, holding it by the approval of another emperor or a supreme ecclesiastical official (the Pope or the Ecumenical Patriarch)—but was usually considered by western Europeans to be equivalent to king, or to be somewhat in-between a royal and imperial rank

The purpose of the passenger list maintained by the Transportation Security Administration is to keep people who are possible threats off airplanes.

The Transportation Security Administration is an agency of the United States Department of homeland security which function is to ensure the security of the traveling public in the United States. Its creations was as response to the September 11 attacks.