I'd like to know where and when was Monero started please.
2 Answers
Here's a collection of StackExchange posts talking about the history:.
This one is of particular interest: What is the origin of Monero and its relationship to Bytecoin?
See also a nice collection of history-related posts found here.
https://en.wikipedia.org/wiki/Monero_(cryptocurrency)#History
You can also look at different price chart websites to see what the prices have been in the past, such as https://coinmarketcap.com/currencies/monero/