Yes and no. Secularism implies the absence of discrimination or bias against any religious groups, and in this way can be inclusive of all religious groups (and include atheist and agnostic beliefs, for which there are no sacred writings). By being inclusive of all religious groups, secularism can be seen as accepting all sacred writings as equally valid, without necessarily accepting any to be true.
"Hieroglyphic" means sacred engraved writing.
no there are none
yes i think that the main sacred writing of Islam allow ploygamy
The sacred writing of Buddhism is Tipitaka, and is a very large book.
heirogliphics
The Bible...
hieroglyphics
The Torah
No. The sacred writing of Judaism is the Bible, also called the Tanakh. The Vedas are one of several Hindu Holy Books.
To the parents, maybe.
Qu'ran
Just about every single one.