Conversation so far:
When did prose become important in Turkish culture?
The style of the current novelists can be traced back to the "Young Pens" (Genc Kalemler) journal in the Ottoman period.
What was the journal about?
Young Pens was published in Selanik under Omer Seyfettin, Ziya Gokalp and Ali Canip Yontem.
Were there any other important journals?
They covered the social and political concepts of their time with the nationalistic perspective.
They were the core of a movement which became known as the "national literature..

Question: What kinds of concepts?
Self-contained rewrite: What kinds of concepts did the journals of the Ottoman period cover?