<includeonly>{{#ifeq:{{{3}}}|-1|{{DecadesAndYears/decade|{{{1}}}|-1|0|{{#switch:{{{4}}}|AD=BC|BC=AD}}}}|{{DecadesAndYears/decade|{{{1}}}|{{{2}}}|{{{3}}}|{{{4}}}}}}}</includeonly><noinclude>
This subtemplate creates a row for the table even for the first century (AD or BC).
*{{{1}}} = namespace 
*{{{2}}} = century 
*{{{3}}} = decade 
*{{{4}}} = epoch AD or BC</noinclude>