we just wouldn't have figured out that our universe aws heliocentric until a little later
Galileo agreed with Copernicus on his theory so we would have found it out still
just a little later
they were mainly the same as the ones we do today. some of them were different and some animals were used in the war for different things. as i said they were mainly the same as ones we have today.
Believe it or not, that's a lot of different people.
Answer: Today it is estimated that there would be approximately 22-24 Million Jews if the Holocaust never happened. Instead there are about 14 million today. Answer: I don't think it's possible to answer this question, as one would need to make lots of assumptions about birth-rates.
Different weapons? The war today wasn't started by Archduke Franz Ferdinand's body.
Much like bullets today. There are many different kinds of bullets, but the appearance has not changed much in 100 years.