the division of the city was set in stone when the berlin wall was erected on 13th august, 1961.

How would the previous sentence be correctly capitalized?
Answer: The division of the city was set in stone when the Berlin Wall was erected on 13th August, 1961.
other symptoms of mercury poisoning include vomiting, greyish rings in the mouth and throat, bloody diarrhoea followed by wound formation. mercury vapours can cause respiratory and kidney problems.

How would the previous sentence be correctly capitalized?
Answer: Other symptoms of mercury poisoning include vomiting, greyish rings in the mouth and throat, bloody diarrhoea followed by wound formation. Mercury vapours can cause respiratory and kidney problems.
dieldrin 1992 ban on use as active ingredient in pesticides

How would the previous sentence be correctly capitalized?
Answer: Dieldrin 1992 Ban on use as active ingredient in pesticides
it made it difficult for the industrial development.

How would the previous sentence be correctly capitalized?
Answer: It made it difficult for the industrial development.