In which core leader competency do you create and promulgate a vision of the future

Core leader competencies must be centered in influence, develop and achieve.

Influencing people is a core skill that you have to develop if you wanna lead other people to certain goal, because people follow those leaders that influence them. So, in other to influence people they have to admire you, some skill, intelligence, speech power, being number 1 in your field, these could be things that people could follow.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

good question. i'll be looking into that. (this is a joke sir)