almost a thousand years as the largest and richest city in the west, and almost two thousand as the most important for the catholic church, has left it dripping with sights such as the colosseum, the trevi fountain and the vatican city's st peter's basilica and michelangelo's sistine chapel. you'll enjoy this modern, vibrant city, however, as much for the colourful markets, elegant shopping, exciting nightlife, dazzling ice creams, chilled white wine and fantastic cuisine that you can enjoy here.

How would the previous sentence be correctly capitalized?
Answer: Almost a thousand years as the largest and richest city in the West, and almost two thousand as the most important for the Catholic church, has left it dripping with sights such as the Colosseum, the Trevi Fountain and the Vatican City's St Peter's Basilica and Michelangelo's Sistine Chapel. You'll enjoy this modern, vibrant city, however, as much for the colourful markets, elegant shopping, exciting nightlife, dazzling ice creams, chilled white wine and fantastic cuisine that you can enjoy here.
he has given us a formula,

How would the previous sentence be correctly capitalized?
Answer: He has given us a formula,
in march 2017, the total solar production was 21% higher than estimated.

How would the previous sentence be correctly capitalized?
Answer: In March 2017, the total solar production was 21% higher than estimated.
research also reveals that steroids can accelerate "mitochondria" the power producers in cells which oxidize fat.

How would the previous sentence be correctly capitalized?
Answer: Research also reveals that steroids can accelerate "Mitochondria" the power producers in cells which oxidize fat.