1) Hieroglyphs were used in Egypt for over 2000 years as a formal written script, containing around 900 symbols, and were forgotten for about 1000 years until being deciphered around 200 years ago.
2) Hieroglyphs could represent sounds, words, or ideas, and included different types of symbols like uniliterals representing single sounds and biliterals/triliterals representing combinations of sounds.
3) Names in hieroglyphs included names at birth (nomen), a crowned name (prenomen), and determinatives indicating gender, with the name of the king often written first in honorific transposition.