Hi @librepensadora. Great you have the site where the historical information. You can edit your blog to add it maybe in the footer that will capture all the information you obtained from there.
Also, for the tags, generally, if you write about a certain subject to topic, such as food, you could use the #foodie tag. They have a Community. You may want to visit some of the Communities to see what type of posts are included there.
Finally, visit our SteemTerminal #list-tag room. There are numerous tag ideas to use.
Visit those first, then let us know in rally 500 chat. Thanks, and have a blessed weekend.
Thank you, @justclikindiva for your recommendations. I will do that next time for tagging.
Now I am going to add the url where I found the information about Terracotta Warriors.