115

115th

11 november

11-plus

11th

12

120

120th

125

125th

12th

12-tone music

12-tone system

13

130

130th

135

135th

13th

14

140

140th

144

145

145th

14 july

14th

15

150

150th

1530s

155

155th

15 august 1945

15 may organization

15 minutes

15th

16

160

160th

165

165th

16 pf

16th

17

170

170th

1728

175

1750s

175th

1760s

1770s

1780s

1790s

17 november

17th

18

180

180th

1820s

1830s

1840s

1850s

1860s

1870s

1880s

1890s

18-karat gold

18th

19

190

1900s

190th

1920s

1930s

1940s

1950s