 <translate> It was designed for backward compatibility with ASCII. Code points with lower numerical values, which tend to occur more frequently, are encoded using fewer bytes. The first 128 characters of Unicode, which correspond one-to-one with ASCII, are encoded using a single octet with the same binary value as ASCII, so that valid ASCII text is valid UTF-8-encoded Unicode as well. Since ASCII bytes do not occur when encoding non-ASCII code points into UTF-8, UTF-8 is safe to use within most programming and document languages that interpret certain ASCII characters in a special way, such as "/" in filenames, "\" in escape sequences, and "%" in printf.

Where are the ascii characters found in the utf-8 code points?
The answer is The first 128 <yor> A ṣe apẹrẹ rẹ fun ibaramu pada pẹlu ASCII. Àwọn kóòdì tí iye wọn kéré, tí wọ́n sábà máa ń wáyé, ni wọ́n máa ń fi àwọn byte díẹ̀ ṣe. Àwọn àmì 128 àkọ́kọ́ nínú Unicode, tí ó bá ASCII mu, ni wọ́n fi ṣe àdàkọ nípa lílo octet kan ṣoṣo pẹ̀lú iye méjì kan náà tí ASCII ní, kí àdàkọ ASCII tó bá tọ́ jẹ́ àdàkọ Unicode tí a ṣe àdàkọ UTF-8 tó bá tọ́ pẹ̀lú. Níwọ̀n ìgbà tí àwọn byte ASCII kò wáyé nígbà tí a bá ń ṣe àdàkọ àwọn kókó tí kì í ṣe ASCII sínú UTF-8, UTF-8 jẹ́ ààbò láti lò nínú ọ̀pọ̀lọpọ̀ àwọn èdè ètò àti àwọn ìwé tí ó ń ṣe àlàyé àwọn àmì ASCII kan ní ọ̀nà àkànṣe, bíi "/" nínú orúkọ fáìlì, "\" nínú àwọn ìtòlẹ́sẹẹsẹ tí kò ní àdàkọ, àti "%" nínú printf.  Nibo ni awọn ohun kikọ ascii ti a rii ninu awọn aaye koodu utf-8? Ìdáhùn náà ni Ìkíní 128 