Category: Thanks to a dead cow. This topping is called 'minced meat' by some.?

Questions

In 1797 Wilhelm Beer, first to map?

In 1809 Louis Braille, developed ---------- for the blind?

In 1863 Four-wheeled roller skates patented by ---------- of New York.?

In 1943 ---------- Declared Time Magazine's "Man Of The Year"?

In 1948 ---------- National Day.?