Help! Does anyone know the website where you can submit pdfs of your school work and then redeem unlocks to look at other submitted school work from other people? Like I need it now but I don't know what the website is called because I used it last year.

this is the closeist thing to it

the last was taken down

Explanation:

because of all the immigration, america became one big melting pot. the diversity of cultures from all over the world made america somewhat divided as well. people that immigrated stayed with their kind, and their traditions, while native born americans stayed with their kind and their traditions. normally, people born in american scorned the immigrants as well. the new religions also divided america. in summary, it took away from the american culture and identified america as the "melting pot."