The theory of special relativity was derived in 1905.
The theory of general relativity was derived in 1915.
By 1934, Einstein might be explaining one or both of his relativity theories, but their derivation was done 20-30 prior, depending on which theory of relativity was being discussed.
qwer5r
The theory of special relativity was derived in 1905.
The theory of general relativity was derived in 1915.
By 1934, Einstein might be explaining one or both of his relativity theories, but their derivation was done 20-30 prior, depending on which theory of relativity was being discussed.