This is Qatarihistorian
First of all, user Mttll was conducting vandalism on a hidden agenda. He didn't like the fact the Sultanate of Rum is identified as a Persianate state, even though sources clearly indicated the Persianate nature/identity of the state due to two factors: 1) that the state was based on a Persianate court culture. 2) that the state's official language was Persian. 

Nevertheless, user Mttll decided to move the term "Persianate" to the section of arts and architecture, in order to disguise historical facts. When I prompted him of this, he tried to FURTHER disguise his actions by renaming the arts and architecture section to > culture, but that still was invalid.

The irony is, even though he wanted to discuss this issue with me on the article's talk page, he didn't want to compromise, therefore he said something along the lines of "I don't care what you think" and went ahead with his pathetic actions of distorting facts. 

I even showed in my edits that I had no problem with him wanting to call the Sultanate of Rum a "Turkish" state, so long as he provided references for it. By the way, LONELYPLANET travel guides are not reliable references, I hope you people realize that.

Therefore in my recent edits, I wrote the Sultanate of Rum was a Persianate AND Seljuk Turkish state. It can be both at the time. They don't conflict each other by any means. Now the problem with user Mttll is his clear nationalistic agenda in the article, whereby he tries to promote only the Turkish aspect of the state while negating the sources to suggest the Persianate aspect.

In his user talk page, he is blatantly lying to the admin by telling him that I reached agreements with him. I certainly did not. And for the sake of wikipedia's reliability, I will ensure the information regarding Sultanate of Rum being a Persianate state will be restored because nothing warranted its move in that article, unless a hidden nationalistic agenda was intended.