What is Mahdism?
Various Hadiths Reveal that the Qur'an Refers to the Mahdi
Various Verses of the Qur'an that Hint the End Times and the Mahdi
The Signs of the End Times are Coming One After the Other

There is No Doubt About the Coming of the Mahdi

Signs of the Emergence of Mahdi

Our Holy Prophet (Saas) Foretold the Emergence of Mahdi and the Golden Age

THE SIGNS OF THE END TIMES ARE COMING ONE AFTER THE OTHER

The hadiths that form the subject of our inquiry will be easily recognized as issuing from the Prophet (saas). There is a method to distinguish those that are true from those that are false. As we know, hadiths about the Doomsday relate to events that are to take place in the future. For this reason, when a hadith comes true in the course of time, all doubt as to the source of the words is removed.

Several Islamic scholars who conducted research on the subject of the End Times and of the signs of the Last Day have used this criterion. An expert on the subject, Bediuzzaman Said Nursi, said that the fact that the hadiths concerning the End Times correspond to events observed in our day shows the truth of the hadiths.(Bediuzzaman Said Nursi, Risale-i Nur Collection, The Rays, Fourteenth Ray)

Some of the signs related in the hadiths were observable in some part of the world in any period during the 1400 year history of Islam, but that would not have proven that that period was the the End Times. For a certain period to be called the End Times, all the signs of the Last Day must be observed to be occurrence in that same period. This is expressed in a hadith:

Signs following one another like the pieces of a necklace falling one after the other when its string is cut. (Tirmidhi)