Offer many timelines with your own entered date

I like this timelines that offer you many timelines in the same web page, especially you can enter in your own date. There is a great video that show how to set up at this YouTube link https://www.youtube.com/watch?v=Mk3414Zsl7w&t=28s The post-id is located in url of your post page. With incorrect post-id your timeline wont be displayed.