According to a 2015 article by Ivan Dikov published by "Archaeology in Bulgaria," renowned Bulgarian historians want to set historical records straight based on recent findings and as a response to politically-based, inaccurate Mainstream narratives.  

Among the list of making “right the wrongs" in textbooks, these Bulgarian historians want the Bulgarian Ministry of Education to:

(1)  Teach “about the Ancient Iranian World, i.e. Persia, because the Ancient Bulgars appear to have originated from it”…

(2) Teach the following about the origin of the Ancient Bulgars:

...“the theory about the Turkic (Mongol) origin of the Ancient Bulgars has been largely discredited since the fall of the communist regime. Taking advantage of the newly established academic freedom, a number of Bulgarian historians and archaeologists have formulated and explored the theory about the Iranian (Sarmatian, Scythian), i.e. Aryan origin of the Bulgars”…

And that “today’s Bulgarian society has adopted a more balanced approach to the issue, with the theories stipulating the Iranian (Aryan) origin of the Ancient Bulgars (with or without Turkic influences) appearing to dominate the public discourse.”

[pic NASA/Wikipedia @ Archaeology in Bulgaria:  “The region north of the Caucasus Mountain was where the Ancient Bulgars established Bulgaria (the First Bulgarian Empire) in 165 AD, according to recent findings in Ancient Armenian sources, a hypothesis confirmed by the manuscript called Nominalia of the Bulgarian Khans”…for educational purposes only]

In an April 2016 article published in Turkey’s “The Guide Istanbul,” one notes:

“Our word ‘tulip’ is even derived from the Persian word for ‘turban’ – Europeans learned this word from the Ottoman elite, who spoke a form of Turkish with strong influences from Persian.”

Of course, many sources indicate that tulips were native to Iran… and we’ve discussed in that past that Iranians sent tulips to their lover…

“We are told that in Persia the tulip, whose blossom in its native countryis scarlet, while the centre of its glowing cup is black, is used to expresswarm affection; and, when sent by a lover, will convey to the object of his attachment the idea that like this flower, his face is warm and his heart is consumed as a coal.”

~ by Anne Pratt, “The Field, the Garden and the Woodland” (1838)

[pic source pinterest:  “Nature in Ornament (1892) by Lewis F Day.Plate 65. ITALIAN VERSION OF A PERSIAN CARPET - rose and tulip - S.K.M”…for educational purposes only]