Subaru Telescope is the first large, cutting-edge scientific facility built and run by Japanese in a foreign country.  The concept was developed in the early 1980’s by surveying possible construction sites all over the world and by carrying out various technical feasibility studies. The Mauna Kea summit emerged as the most promising construction site for Subaru Telescope, then called JNLT, already in mid 1980’s. The optical design and telescope structures were optimized to explore the “edge” of the universe where we named “Galaxy Forming Region” in analogy to the star forming regions in galaxies. For this purpose, most efforts were devoted to secure sharp images as well as big light-collecting power in the optical and infrared region.