When I Traveled Through Time and Became an Emperor, I Had a Library in My Mind.

[Purely fictional history] [Time Travel] [Hard-core development of technology] [Strive for world supremacy] [No system] [Single heroine without harem] Wang Mu traveled through time and became an emperor in ancient times. I originally thought I could live a sinful life of reveling in wealth and partying every night. Unfortunately, reality slapped Wang Mu hard in the face. From some strange memories, Wang Mu learned that his dynasty would fall in a year. Although he was an emperor, he ended up hanging himself at the southern city gate. However, there is always a way, and Wang Mu discovered that there was a library in his consciousness sea space. The library contains a large amount of scientific and technological knowledge for later generations. In this way, Wang Mu relied on this knowledge to make gunpowder, smelt steel, fight against powerful officials, and kill traitors. In this way, through Wang Mu's unremitting efforts, railways, automobiles, aircraft and artillery gradually appeared in the feudal society that originally had nothing. Gradually, Wang Mu's ambition was no longer limited to the one-third of land under his feet. He also set his sights on the entire world...