diff --git a/History.rdoc b/History.rdoc
new file mode 100644
index 00000000..a9a39746
--- /dev/null
+++ b/History.rdoc
@@ -0,0 +1,3 @@
+=== 0.1.0 / 2009-10-21
+
+* Initial version
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..deb0f259
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2009 Simon Harris
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.rdoc b/README.rdoc
new file mode 100644
index 00000000..d06d6882
--- /dev/null
+++ b/README.rdoc
@@ -0,0 +1 @@
+= Hamster
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 00000000..4568ac8f
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,5 @@
+Dir["tasks/**/*.rb"].each do |task_file|
+  require task_file
+end
+
+task :default => [ :spec ]
diff --git a/TODO b/TODO
new file mode 100644
index 00000000..e69de29b
diff --git a/hamster.gemspec b/hamster.gemspec
new file mode 100644
index 00000000..33d8a7e4
--- /dev/null
+++ b/hamster.gemspec
@@ -0,0 +1,16 @@
+require 'lib/hamster/version'
+
+Gem::Specification.new do |s|
+  s.name             = "Hamster"
+  s.version          = Hamster::VERSION
+  s.platform         = Gem::Platform::RUBY
+  s.has_rdoc         = true
+  s.extra_rdoc_files = ["README.rdoc", "History.rdoc", "TODO", "LICENSE"]
+  s.summary          = "Hash Array Mapped Tries for Ruby"
+  s.description      = s.summary
+  s.author           = "Simon Harris"
+  s.email            = "haruki.zaemon@gmail.com"
+  s.homepage         = "http://github.com/harukizaemon/hamster"
+  s.require_path     = "lib"
+  s.files            = Dir["lib/**/*", "spec/**/*", "tasks/**/*", "Rakefile"] + s.extra_rdoc_files
+end
diff --git a/lib/hamster.rb b/lib/hamster.rb
new file mode 100644
index 00000000..3c678ff7
--- /dev/null
+++ b/lib/hamster.rb
@@ -0,0 +1,2 @@
+require 'hamster/trie'
+require 'hamster/version'
diff --git a/lib/hamster/trie.rb b/lib/hamster/trie.rb
new file mode 100644
index 00000000..d0820a88
--- /dev/null
+++ b/lib/hamster/trie.rb
@@ -0,0 +1,6 @@
+module Hamster
+  
+  class Trie
+  end
+  
+end
diff --git a/lib/hamster/version.rb b/lib/hamster/version.rb
new file mode 100644
index 00000000..429235f0
--- /dev/null
+++ b/lib/hamster/version.rb
@@ -0,0 +1,5 @@
+module Hamster
+
+  VERSION = "0.1.0".freeze
+
+end
diff --git a/spec/hamster/trie_spec.rb b/spec/hamster/trie_spec.rb
new file mode 100644
index 00000000..075edc72
--- /dev/null
+++ b/spec/hamster/trie_spec.rb
@@ -0,0 +1,5 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe Hamster::Trie do
+
+end
diff --git a/spec/spec.opts b/spec/spec.opts
new file mode 100644
index 00000000..7d2417be
--- /dev/null
+++ b/spec/spec.opts
@@ -0,0 +1,3 @@
+--colour
+--loadby random
+--backtrace
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644
index 00000000..29f8535e
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,7 @@
+require 'rubygems'
+
+# Support running specs with "rake spec" and "spec"
+lib = File.expand_path(File.dirname(__FILE__) + '/../lib')
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+
+require 'hamster'
diff --git a/tasks/spec.rb b/tasks/spec.rb
new file mode 100644
index 00000000..88d595da
--- /dev/null
+++ b/tasks/spec.rb
@@ -0,0 +1,6 @@
+require "spec/rake/spectask"
+
+desc "Run specifications"
+Spec::Rake::SpecTask.new(:spec) do |t|
+  t.spec_opts << "--options" << "spec/spec.opts" if File.exists?("spec/spec.opts")
+end