Are you aware that vaccines came out way over 200 years ago in Europe? And the technique was known for quite a bit longer in Asia: https://en.wikipedia.org/wiki

Are you aware that vaccines came out way over 200 years ago in Europe? And the technique was known for quite a bit longer in Asia: https://en.wikipedia.org/wiki/Inoculation#Origins https://en.wikipedia.org/wiki/Inoculation#Origins