Please capitalize where necessary: the colours have changed due to a chemical reaction in the blue pigment, which is known as prussian blue. the colour changes have been exacerbated by 176 years of exposure to light. the sky has become paler and lighter.
A: The colours have changed due to a chemical reaction in the blue pigment, which is known as Prussian blue. The colour changes have been exacerbated by 176 years of exposure to light. The sky has become paler and lighter.

Please capitalize where necessary: it is of course interesting to search for the hidden tracks, which may put a new content into the legends and may explain how the heruls could disappear in scandinavia – but they will never be regarded as historical evidence.
A: It is of course interesting to search for the hidden tracks, which may put a new content into the legends and may explain how the Heruls could disappear in Scandinavia – but they will never be regarded as historical evidence.

Please capitalize where necessary: rapier with sword belt. the rapier’s enamelled gold hilt has an animal’s head as a pommel and a dragon as a crossguard.
A: Rapier with sword belt. The rapier’s enamelled gold hilt has an animal’s head as a pommel and a dragon as a crossguard.

Please capitalize where necessary: a nice screensaver to have and share with your friends and family."
A:
A nice screensaver to have and share with your friends and family."