Some tid bits about Bhagawad Gita
(I have used an excellent compilation about this subject by my friend Vasu Iyengar. My heart felt thanks to him)
1, Bhagwad Gita is in Bhishma Parva of Mahabharatha –chapter 25 to 42
2.it has 700 verses, 620 spoken by Krishna, 57 by Arjuna, sixty seven by SAnjaya and one by Dritharashtra.
This is described in the following Sloka
Shadasathaani savimsathi slokaanaam Praha Kesava,
Arjuna saptha panchasath, saptha sashtinthu Sanjaya,
Dritharashtra slokamekam Geethaya Mana muchyathe
3,Mahabharatha vis considered as the fifth Veda and its Jnana Kanda(Chapter of wisdom) is Bhagawath Gita
4.In the first four chapters of Gita , Lord Krishna speaks as friend of arjuna and from then onwards as God.
5.The first six chapters of Gita is the philosophy of Jeevathma( individual soul)
The next six deals with Paramathma -the God,
And the last six a compilation of both
6.Commentries to BHagawath Gita has been done by Adhi Sankara, Swami Ramanuja and Madhwacharya.
6.The first ever translation of Bhagawad Gita in to English verse is by Edwin Arnold done in 1885. I understand that there is translation in to poem by Surendra pal sing in 2003 and I have translated it in to poem in the year 2009.( http://stotrarathna.blogspot.com/2009/07/bhagawad-gita-in-english-verse.html )
7.Summary of Gita using one sloka, 3 slokas from it, 4 slokas from it and 7 slokas from it are available(http://stotrarathna.blogspot.com/2019/02/a-search-for-bhagwad-gita-in-nutshell_18.html )