Japanese special district Robotics Lab can be built right after culture is changed to Japanese, there is no technological requirement. Which allowed me to have robotics lab while still been in Early Modern Era (Flintlock as a most advanced technology). I think there should be Computing technology as a prerequisite for Robotics Lab, otherwise Japanese culture has game-breaking advantage over other cultures.

Steps to Reproduce: 1. Choose Japanese culture while not been in Contemporary Era 

Expected Behavior: Robotics Lab can't be built until Computing technology