 Since the Song dynasty , critics have called Du Fu the " poet historian " ( 詩史 shī shǐ ) . The most directly historical of his poems are those commenting on military tactics or the successes and failures of the government , or the poems of advice which he wrote to the emperor . Indirectly , he wrote about the effect of the times in which he lived on himself , and on the ordinary people of China . As Watson notes , this is information " of a kind seldom found in the officially compiled histories of the era " . 
 Since the Song dynasty , critics <a href='been_done' title='1'><mark>have</mark></a> called Du Fu the " poet historian " ( 詩史 shī shǐ ) . The most directly historical of his poems are those commenting on military tactics or the successes and failures of the government , or the poems of advice which he wrote to the emperor . Indirectly , he wrote about the effect of the times in which he lived on himself , and on the ordinary people of China . As Watson <a href='uninflect' title='2'><mark>notes</mark></a> , this <a href='drop_aux' title='3'><mark>is</mark></a>information " of a kind seldom found in the officially compiled histories of the era " . 
Since the Song dynasty , critics done called Du Fu da " poet historian " ( 詩史 shī shǐ ) . Tdamost directly historical of his poems are those commenting on military tactics or the successes and failures of thdaovernment , or thedaems of advice which he wrote to the daeror . Indirectly , he wrote about the effect of the tdas in which he lived on hisself , and on the ordinary folks of China . As Watson note , dis information " of a kind seldom found in the officially compiled histories of the era " .