Use uma consulta de união e literais:
SELECT ID, Name, 'iamfromTABLE1' as indicator, Year
FROM Table1
UNION
SELECT ID, Name, 'iamfromTABLE2' as indicator, Year
FROM Table2
ORDER BY Year
EDIT:
as indicator adicionado por recomendação de iim.hlk 
SELECT ID, Name, 'iamfromTABLE1' as indicator, Year
FROM Table1
UNION
SELECT ID, Name, 'iamfromTABLE2' as indicator, Year
FROM Table2
ORDER BY Year
as indicator adicionado por recomendação de iim.hlk 
