1) Muslims made many contributions to modern inventions and technologies between the 9th and 13th centuries, as highlighted in the book "1001 Inventions".
2) Key Muslim inventions included modern surgical tools and techniques by Al-Zahrawi in the 10th century, the establishment of the first hospitals and medical centers in the 9th century, and the development of algebra and early concepts of modern mathematics by Al-Khwarizmi in the 9th century.
3) Other innovations discussed include the fountain pen invented for the Sultan of Egypt in the 10th century, windmills and the crank-connecting rod mechanism in the 12th century, and early experimentation with flying machines in 9th century