The plastic shirt collar was patented in the US by Walter Hunt.
Source
Pratibha Patil was sworn in as India's first female president.
Italian Fascist Prime Minister Benito Mussolini was removed from office.
The UK had its hottest day on record.
The first baby was born after being conceived by in vitro fertilization (IVF).
Bob Dylan performed his first electric concert at the Newport Folk Festival.
