in fact, despite writing a work which appears to us today to be in the style of a modern textbook, grassmann failed to convince mathematicians of his own time.

How would the previous sentence be correctly capitalized?
Answer: In fact, despite writing a work which appears to us today to be in the style of a modern textbook, Grassmann failed to convince mathematicians of his own time.
magnesium, the so-called 'anti-stress mineral' has a positive effect on muscle relaxation and also plays an important role in the body's energy metabolism in which it activates a large variety of enzymes.

How would the previous sentence be correctly capitalized?
Answer: Magnesium, the so-called 'anti-stress mineral' has a positive effect on muscle relaxation and also plays an important role in the body's energy metabolism in which it activates a large variety of enzymes.
at the same time when piece measures 23-25-28-30 cm cast off for armhole each side on every other row: 3 sts 1 time and 1 st 2-3-3-2 times = 23-26-28-32 sts.

How would the previous sentence be correctly capitalized?
Answer: At the same time when piece measures 23-25-28-30 cm cast off for armhole each side on every other row: 3 sts 1 time and 1 st 2-3-3-2 times = 23-26-28-32 sts.
2:11 as ye know how we exhorted and comforted and charged every one of you, as a father doth his children,

How would the previous sentence be correctly capitalized?
Answer: 2:11 As ye know how we exhorted and comforted and charged every one of you, as a father doth his children,