You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
I involuntarily stumbled in this article: https://en.wikipedia.org/wiki/Battle_of_Maritsa
I took a look at the talk page, but the result doesn't sound plausible at all.
I decided to ask to the real experts.
Are the said numbers correct? If not, which ones?