Template:History
From OCE Space Simulation
curryear={{#expr {{#sub:History|1|4}}}} twodig={{#expr{{#sub:History|6|2}}}}
preyear={{#expr curryear-1}} pretwodig={{#expr twodig-1}} Prev=preyear-pretwodig
postyear={{#expr curryear+1}} posttwodig={{#expr twodig+1}} Post=postyear-posttwodig
| Previous Year | This Year | Next Year |
|---|---|---|
| [[{{{Prev}}}]] | History | [[{{{Post}}}]] |
