Please capitalize where necessary: for erect gait among our hairy ancestors to have become first the rule and in time a necessity presupposes that in the meantime the hands became more and more devoted to other functions.[2] even among the apes there already prevails a certain separation in the employment of the hands and feet.
A: For erect gait among our hairy ancestors to have become first the rule and in time a necessity presupposes that in the meantime the hands became more and more devoted to other functions.[2] Even among the apes there already prevails a certain separation in the employment of the hands and feet.

Please capitalize where necessary: i my older days, i'll convert.
A: I my older days, I'll convert.

Please capitalize where necessary: one can still find a legacy lever as well as the button on some modern machines.
A: One can still find a legacy lever as well as the button on some modern machines.

Please capitalize where necessary: saturday 10 february, 2018 61824007 requests since tuesday 16 december, 2003
A:
Saturday 10 February, 2018 61824007 requests since Tuesday 16 December, 2003