Voting Rights and Suffrage/History/Country sources/Bulgaria
What is the oldest written source in this country that mentions this right?
Bulgaria
According to Article 86 of the 1879 Constitution of the Principality of Bulgaria: "The ordinary National Assembly is composed of Deputies, chosen by direct popular election, in the proportion of one representative for 10,000 individuals of either sex. The Deputies are chosen for a term of three years. The electors are all Bulgarian subjects over twenty-one years of age, and in the enjoyment of civil and political rights. Any Bulgarian subject who enjoys civil and political rights, is over thirty years of age, and can read and write, may be chosen Deputy. A special electoral law will regulate the proceedings of the elections."
Under the 1991 Constitution Article 42, every citizen above the age of 18 is free to participate in elections of state and local authorities and in referendums (Constitute Project, "Bulgaria's Constitution of 1991 with Amendments through 2015" ).
References:
1879 Constitution of the Principality of Bulgaria: English translation of the Bulgarian original text of the Constitution of 1879 6 (2014) Chapter XIV: The Ordinary National Assembly: https://heinonline-org.proxygw.wrlc.org/HOL/Page?collection=cow&handle=hein.cow/zzbg0031&id=7&men_tab=srchresults
1991 Bulgaria Constitution: https://www.constituteproject.org/constitution/Bulgaria_2015?lang=en.