Definition:Pi/Historical Note/Modern Developments

Historical Note on $\pi$ (Pi)
Since the middle of the $20$th century, considerable advances in the known digits of $\pi$ (pi) have been made using computers.

In $1945$ (or $1946$ -- sources are contradictory), calculated $\pi$ to $610$ digits using a desk calculator, in the meantime discovering that the hitherto record-breaking $707$-digit work of  was incorrect from the $528$th place onwards.

During the course of $1947$, extended his work to $710$ and $808$ digits.

In $1949$, working with, this was once again extended to $1120$ digits.

By $1949$, electronic computers were being used.

Some of the record-breaking calculations are given in the following table: