While your history seems somewhat accurate you seem to be mistaken about what is meant by "\n" in Perl. First of all it is not necessarily a LINE FEED character. If the folks who wrote C and Perl had wanted to escape a character for LINE FEED then why did they not use "\l" that is an escaped ell or the lower case version of L. The reason is simple: "\n" is a logical newline, yes the n is for NEWLINE. NEWLINE is not a character in the ASCII character set. It is a contrivance to get around the platform incompatabilities that operating systems impose on what are colloquially known as "TEXT" files. It is true that Macs end their text file lines with a CARRIAGE RETURN character but within C, C++, Perl and several other Mac Programming languages you need only specify that you want a NEWLINE in your text file and:

    print FOO "A\n";
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will put the code 65 then the code 13 into your text file on a Mac, it would put the code 65 then 10 into the file on Unix and it would put the codes 65 13 10 into the file on a Microsoft operating system assuming that a binmode(FOO); statement had not appeared prior to the print statement.

By the way, Unix was invented around 1969-1970 and predates the only OSes that use the CARRIAGE RETURN + LINE FEED combination for end of text line characters by about 10-12 years. Unix uses a LINE FEED for the end of lines in files called text files. The Unix OS was capable of sending text files to printers for years before DOS came along.