yes
yes that invented the first seven-day calendar
the first person to invent sports were the Iroquois-lacrosse
William Across was the first person to invent pantomime
the first person to invent the life soze toy was your mama.
no
who was the first person to invent the internal combustion engine
a person
a Victorian
The first person to invent the garden sprinkler was John Feddner.
The first person to invent the first mobile cellular telephone was Martin Cooper.
The name of the person that invented the first calendar is not known. The first calendar was invented in Scotland.