There’s a good source on google if you search this but it’s easy to find on google:)
Answer:
Indian says namastay or do handshakes
A historian would first look at the reliability of a source - when it was published and what was happening at the time (context), who wrote it and their qualifications, any bias the author may hold, whether author sources corroborate the source, whether the author has used references, whether the source provides evidence, who the source is representative of and whether the source provides a balanced perspective