Answer:
Nelson Rolihlahla Mandela was a South African anti-apartheid revolutionary, statesman and philanthropist who served as President of South Africa from 1994 to 1999.
The president addresses were longer in eighteenth century than today because
1. Nowadays there is proper use of modern English.
2. Each and every president has a speech writer who is well educated.
3. In today world people are very well-informed. Therefore president does not need to clarify each and every speech he makes.
4. Television and radios have taken the opportunity to elaborate well what president has said in his speech in different languages so as to reach common man.
A dialogue should be interesting rather than boring.
i hope this helps :)
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