Answer:
There is no proof, it is just an opinion of people.
Explanation:
It's simple to think there's proof but there's not, it's a simple mind made opinion.
The salute is often thought to date back to Roman times, but there is no evidence that soldiers raised their hand as a formal greeting. Another theory is that it originated in medieval Europe, when knights used their hands to raise their visors, revealing their identity to demonstrate they were friendly.
Our beliefs have many errors, i.e., deviations from truth.
Reducing error is important goal, for which we are willing to pay substantial costs.
The causes of our errors can be seen as ranging from context specific to general trends.
We in fact have many identifiable stable general error trends, in addition to legion context specific causes.
By reflecting on error causes, we can seek ways to adjust our pattens of thought and social institutions to reduce error.
For a substantial fraction of error causes, we can in fact find feasible adjustments.
It is often more cost-effective to seek and implement adjustments for general trends, than for context specific errors.
Answer:
no
Explanation:
spelling is strictly the study of how words are spelled
