Symbols are often timeless and universal nature.
There is not discernible difference between them.
True. A column graph is similar to a bar graph. Both have grid lines going horizontally and vertically. They are both used for more than one event or one time. Both also use rectangular bars. The only difference is that a bar graph runs horizontally and a column graph runs vertically.
Ozymandias is first and foremost a metaphor for the ephemeral nature of political power, and in that sense the poem is Shelley's most outstanding political sonnet, trading the specific rage of a poem like “England in 1819” for the crushing impersonal metaphor of the statue.