The Incas developed a record-keeping system using shells and beads on strings.
knots and designs in strings.
writing and pictographs.
numbers and calculations

The Incas developed a record-keeping system using knots and designs in strings.

Explanation:

BTW They're called quipu.  Now you know.  :-)

i believe it would be the first one the importance of internet safety

explanation:

because now and days kids don't know what the can find on the internet they can find dark web, 4 chan ect. if we don't teach them internet safety anything can happen.

(don't search up,dark web,4 chan u have been warned)