Thanks for your reply You re right that it s common but it s still wrong according to the Manual of Style Links should only be included if they re useful to the user too many links are distracting It s not useful to link every possible word when there s no doubt about its meaning So to take a cricket example if you write He played his first Test match in 1928 it s useful to link Test match because people might not know what a Test match is and might want to follow the link to look it up But it s not useful to link 1928 because everyone knows when 1928 was so the link doesn t help anyone But you don t have to take my word for it This is explained in detail in Wikipedia Make only links relevant to the context and Wikipedia Manual of Style links Thanks