Lenin Peak (Kyrgyz: Ленин Чокусу, Russian: Пик Ленина; Tajik: қуллаи Ленин, renamed қуллаи Абӯалӣ ибни Сино in July 2006), rises to 7,134 metres (23,406 ft) in Gorno-Badakhshan (GBAO) on the border of Tajikistan and Kyrgyzstan, and is the second-highest point of both countries. It is considered one of the easiest 7,000 m peaks in the world to climb and it has by far the most ascents of any 7,000 m or higher peak on Earth, with every year seeing hundreds of climbers make their way to the summit. Lenin Peak is the highest mountain in the Trans-Alay Range of Central Asia, and in the Pamir Mountains in Tajikistan it is exceeded only by Ismoil Somoni Peak (7,495 m). It was thought to be the highest point in the Pamirs in Tajikistan until 1933, when Ismoil Somoni Peak (known as Stalin Peak at the time) was climbed and found to be more than 300 metres higher. Two mountains in the Pamirs in China, Kongur Tagh (7,649 m) and Muztagh Ata (7,546 m), are higher than the Tajik summits.
Avicenna (/ˌævᵻˈsɛnə/; Latinized form of Ibn-Sīnā, Arabic full name Abū ʿAlī al-Ḥusayn ibn ʿAbd Allāh ibn Al-Hasan ibn Ali ibn Sīnā أبو علي الحسين ابن عبد الله ابن سينا; c. 980 – June 1037) was a Persian polymath who is regarded as one of the most significant thinkers and writers of the Islamic Golden Age.
Of the 450 works he is known to have written, around 240 have survived, including 150 on philosophy and 40 on medicine.
His most famous works are The Book of Healing – a philosophical and scientific encyclopedia, and The Canon of Medicine – a medical encyclopedia which became a standard medical text at many medieval universities and remained in use as late as 1650. In 1973, Avicenna's Canon Of Medicine was reprinted in New York.
Besides philosophy and medicine, Avicenna's corpus includes writings on astronomy, alchemy, geography and geology, psychology, Islamic theology, logic, mathematics, physics and poetry.
Ibn Sina created an extensive corpus of works during what is commonly known as the Islamic Golden Age, in which the translations of Greco-Roman, Persian, and Indian texts were studied extensively. Greco-Roman (Mid- and Neo-Platonic, and Aristotelian) texts translated by the Kindi school were commented, redacted and developed substantially by Islamic intellectuals, who also built upon Persian and Indian mathematical systems, astronomy, algebra, trigonometry and medicine. The Samanid dynasty in the eastern part of Persia, Greater Khorasan and Central Asia as well as the Buyid dynasty in the western part of Persia and Iraq provided a thriving atmosphere for scholarly and cultural development. Under the Samanids, Bukhara rivaled Baghdad as a cultural capital of the Islamic world.