So what do you think explains that Bulgarian segment on my chromosome though?
One explanation could involve Tatars, who are partial descendents from Volga Bulgars.
So when you say "Bulgarian chromosome segment" what do you mean: Slavic, Turkish, Mongolian?
richer folks in the 18'th century traveled mostly to france but also to the balkans for vacation.
David_18, please name at least one Polish "richer folk" travelling to Bulgaria for vacation in 18th century. I can easily imagine and actually dig out names of many Polish aristocrats and nobility travelling to France, Greece and Italy for pleasure, others travelling to Western Europe for business of for education, but I somehow do not see Polish travellers resting in Bulgarian Black Sea resorts in 1700s. I am not taunting you; I am just curious. If you prove me wrong, then I will be happy learning my lesson for free. But since you said it, the onus is on you to support your claim now. :-)
I bet, more Poles travelled to Turkey proper (of Ottoman Empire) than to Bulgaria over the centuries: as envoys, diplomats, spies, merchants and romantic figures of The Great Emmigration dreaming of restoration of Poland with the help of the ancient enemy - Turkey: Mickiewicz (died in Istanbul), Słowacki, genaral Józef Bem (later known as Murad Pasha, Murat Pasa, Yusuf Paşa), Michał Czajkowski (Mehmed Sadyk Pasa), general Marian Langiewicz. The existence of Polish village Adampol-Polonezköy (30 km west from Istanbul, on Asian side of Bosphorus Straight) says something too about strong Polish-Turkish relations in 19th c.
Krim was quite popular in the 19-20'th century.
There is the old saying in Polish: "Gdzie Rzym, a gdzie Krym?" - in other words, "this two things/ideas are not related at all".
The topic was: Polish Bulgarian contacts. Statistically one cannot deny presence of Bulgarians in Crimea. And yes, Poles tradesmen were always present in Crimea in small numbers during middle ages, in places like Caffa (Kaffa, Kefe, orig. Greek's Theodosia, now Feodosiya), Soldaia (Sudaq, now Sudak), Lusta (Alushta), Caulita (Yalta) or Cembalo (Balaklava).
They were part of European colonies on the south coast of the Crimean Peninsula, initially run by Venetians and later by their arc-enemies Genoese (since 1365) - embedded in the sea of Crimean Tatars, to whom they paid annual tribute. In 1462 Caffa placed itself under the protection of King Casimir IV of Poland. However, Poland did not offer help when real danger came. It all end up in 1475, when Ottommans captured all the outposts. They killed most of non-Italian Europeans (including Poles) or took them into captivity for a ransom, and deported the rest of the population to Istanbul. Italians were sent to Genoa, after paying hefty ransom.
As far as I know, aside of the Varna Battle, which I mentioned in my previous post, Poland was never directly involved in Bulgarian affairs. However, Poland and later Polish-Lithuanian Commonwealth messed with the Moldovian affairs, and through the Moldovian Hospodars (Poland's Fiefs since 1387) extended its posession as far south as Białogród (White Stronghold) na Dniestrem (Akerman, now Bilhorod-Dnistrovs'kyi - Ukraine), on Dniester Lagoon, about 20 km NW from the Black Sea coast. When the town was captured in 1484 by the Ottomans its name was changed to Akerman, meaning "white fortress".
Then there were Vlachs/Romanias (Wallachians), Wołosi in Polish. And there were plenty of contacts with them. Great Wallachian migration brought Karpathian shepherds to Poland, Wallachian soldiers served in Polish armies, and PLC was involved in wars with Principality of Wallachia (1599, 1629-21, 1633-34, 1599-1600, 1620-21, 1633-34). In many of those battles the Wallachians were the allies of the Ottomans. So was Moldavia from time to time.