The didgeridoo was invented in Australia.
It is from Australia. The aborigizines invented them.
A digeridoo.
A digeridoo.
it was invented when the earth was discovered
digeridoo
This sounds Australian.
Sigma notation was invented, not discovered.Sigma notation was invented, not discovered.Sigma notation was invented, not discovered.Sigma notation was invented, not discovered.
It was not discovered but invented.
discovered
They were not discovered, they were invented.
It was not discovered but invented.