AOA, some people say that there is no solid evidence about this night, can someone with reference tell me exactly about it? I have found one good article please this as well. "Significance Of Shab-E-Baraat In Islam"
Be a lil careful of site you posted, when they described the "honor" of muharram they posted a Image of shias beating themselves, while according to scholars of alhulus sunnah this is reprehensive innovation. I am not sure what they are upto.