The archaeologist Patrick Wertmann of the University of Zürich has collected in the Journal of Archeological Science that are 3,000 years old and are therefore the oldest found in Eurasia – in Mesoamerica they have found 3,600 years of remains and in Egypt a 4,500 year old rope pellet.
Wertmann believes that Yangha's can be the first hints of the polo game, as they have found in their tombs gentlemen's clothing and other tools. But one element to confirm the hypothesis is missing: the erroneous sticks found in the most recent graves have not yet been found in this site.