how to add another column to a query result

Hello,

I have two queries that I make a union all, to this I would add a column that makes me from another query. I tried as below and in other ways but without success

SELECT Name,

(
SELECT Date1,Date2,Comment,State         
FROM   tblHystory 
WHERE  IDHistory=976
UNION ALL 
SELECT Date1,Date2,Comment,State         
FROM   tblArchHystory 
WHERE  IDHistory=976
)

FROM tblName

Thanks :)

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