Variant 10 share your ideas about the text from the history of aviation

on my opinion about this text.
before people found it difficult to invent objects, because there was no possibility to invent from better material, there were no laboratories, technology, computers and tools. Over time all this developed, gasoline and gas appeared, people became more experienced. Now there are more opportunities to experiment, modern technology and equipment make our work and life easier.
II. Answer the following questions:

1. 
   Was it interesting for you to read this text?
   

Yes, it was!!!

2. 
   Did you read about the history of aviation at school?
   

Yes, I did!!!

3. 
   When did the first scientific principles of human flight appear?