The very first photograph was taken in 1826 and it took 8 hours for it to develop. After 12 years came, Daguerreotype, The first commercially viable photographic process which reduced the exposure time to 15 to 20 minutes and with further advancements the exposure time was finally down to 60 seconds.

Since then, a lot of advancements have been made in the Photography and the biggest one is digitization of photography, which made camera available to everyone with so much of ease and as a result we take more photographs than ever.

But, Have you ever wondered, how many photographs have ever been taken till now? I bet you didn’t. But this guy did wonder and came up with an answer, the answer is 3.5 trillion photographs till now and 20% of all the photographs are on Facebook.

Here’s the video which contains explanation to the answer and many more interesting facts,