Remove out-of-date mention of USA president

Avoid having to continue to update this every time the president changes
by replacing Barack Obama with Ada Lovelace.

1 files changed, 6 insertions, 5 deletions

diff --git a/pod/perlreftut.pod b/pod/perlreftut.pod
index bd5d38e418..94a96b0e1c 100644
--- a/pod/perlreftut.pod
+++ b/pod/perlreftut.pod
@@ -63,14 +63,15 @@ references.
 
 A reference is a scalar value that I<refers to> an entire array or an
 entire hash (or to just about anything else).  Names are one kind of
-reference that you're already familiar with.  Think of the President
-of the United States: a messy, inconvenient bag of blood and bones.
-But to talk about him, or to represent him in a computer program, all
-you need is the easy, convenient scalar string "Barack Obama".
+reference that you're already familiar with.  Each human being is a
+messy, inconvenient collection of cells. But to refer to a particular
+human, for instance the first computer programmer, it isn't necessary to
+describe each of their cells; all you need is the easy, convenient
+scalar string "Ada Lovelace".
 
 References in Perl are like names for arrays and hashes.  They're
 Perl's private, internal names, so you can be sure they're
-unambiguous.  Unlike "Barack Obama", a reference only refers to one
+unambiguous.  Unlike a human name, a reference only refers to one
 thing, and you always know what it refers to.  If you have a reference
 to an array, you can recover the entire array from it.  If you have a
 reference to a hash, you can recover the entire hash.  But the