Short answers, pulled from the story.
The Divan-i Shams-i Tabrizi is a large collection of poems by Rumi containing more than 40,000 verses. This work includes over 3,000 ghazals written in fifty-five different metres and follows the traditional form of a ghazal lyric poem used for themes of love and friendship.
Rumi met the wandering Persian Sufi dervish named Shams-i Tabrizi in Konya in 1244 C.E. At this time Rumi worked as a jurist and spiritual counselor under the Seljuk Sultan of Rûm before he began writing poetry inspired by their relationship.
Badi al-Zaman Foruzanfar published an authoritative critical edition of the Divan-i Shams-i Tabrizi in 1957 based on manuscripts written within a hundred years of Rumi's death. His version is now considered the standard source for scholars studying the original Persian texts.
Rumi signed about a third of the Divan-i Shams-i Tabrizi under Shams-i Tabrizi's name to repudiate longing and achieve divine unity or tawhid. He also used pen names such as Khâmush or Shams-i Tabrizi at the end of his works to adopt poetic personas.
The first printed copy appeared in Europe in 1838 by Vincenz von Rosenzweig-Schwannau who published seventy-five poems of dubious authenticity. A more selective text containing fifty ghazals was later produced by Reynold A. Nicholson before Badi al-Zaman Foruzanfar established the modern scholarly standard.