Deletion of Central American Historical Institute

Comment: promotional concoction of user Jzsj. The main issue here is that existing sources are just passing mentions or very minimal, so it it is not possible to extract any information on the institute that is longer than a few words without doing  as Jzsj did.   I removed no less than three 'sources' that were actually just bibliography entries used to concoct some good old original research. The extant sources in search do not support notability
Stance: delete
Cited policy: Wikipedia:No original research (WP:OR)