After reconquering Estonia and Latvia in 1944, the Russian SFSR annexed their easternmost territories around Ivangorod and within the modern Pechorsky and Pytalovsky Districts in 1944-1945.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What happened to Estonia and Latvia in 1494?
Ah, so.. unanswerable

The Perpetual Virginity of Mary asserts Mary's real and perpetual virginity even in the act of giving birth to the Son of God made Man. The term Ever-Virgin (Greek ) is applied in this case, stating that Mary remained a virgin for the remainder of her life, making Jesus her biological and only son, whose conception and birth are held to be miraculous. While the Orthodox Churches hold the position articulated in the Protoevangelium of James that Jesus' brothers and sisters are older children of Joseph the Betrothed, step-siblings from an earlier marriage that left him widowed, Roman Catholic teaching follows the Latin father Jerome in considering them Jesus' cousins.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the term used for Mary before giving birth to Jesus?
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The Greeks of the Classical era made several notable contributions to science and helped lay the foundations of several western scientific traditions, like philosophy, historiography and mathematics. The scholarly tradition of the Greek academies was maintained during Roman times with several academic institutions in Constantinople, Antioch, Alexandria and other centres of Greek learning while Eastern Roman science was essentially a continuation of classical science. Greeks have a long tradition of valuing and investing in paideia (education). Paideia was one of the highest societal values in the Greek and Hellenistic world while the first European institution described as a university was founded in 5th century Constantinople and operated in various incarnations until the city's fall to the Ottomans in 1453. The University of Constantinople was Christian Europe's first secular institution of higher learning since no theological subjects were taught, and considering the original meaning of the world university as a corporation of students, the world's first university as well.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What contribution to the scientific community have the French left the world?
Ah, so..
unanswerable