Please capitalize where necessary: 22 century tech » computers & internet » programming and development
A: 22 Century Tech » Computers & Internet » Programming and Development

Please capitalize where necessary: one of lesniewski's first projects had been to attempt to disprove this principle, but lukasiewicz had published an appendix to his 1910 publication on the principle of contraction in aristotle which caused lesniewski to change to direction of his research.
A: One of Lesniewski's first projects had been to attempt to disprove this principle, but Lukasiewicz had published an appendix to his 1910 publication On the principle of contraction in Aristotle which caused Lesniewski to change to direction of his research.

Please capitalize where necessary: considerably more companies established by graduates
A: Considerably more companies established by graduates

Please capitalize where necessary: whitney became actively involved in mathematical education at the elementary school level.
A:
Whitney became actively involved in mathematical education at the elementary school level.