#!/usr/bin/env perl use XML::Simple; use Tie::IxHash; use Spreadsheet::WriteExcel; *XML::Simple::new_hashref = 'new_hashref'; sub new_hashref { my $self = shift; tie my %hash, 'Tie::IxHash'; %hash = @_; return \%hash; } if($ARGV[0] eq ""){…

http://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1438181929

http://www.atmarkit.co.jp/ait/articles/1503/24/news052.html

http://en.wikipedia.org/wiki/1915 January 25 First United States coast-to-coast long-distance telephone call, facilitated by a newly invented vacuum tube amplifier, ceremonially inaugurated by Alexander Graham Bell in New York City and his…