Who has written the poem ''Elegy Written in a Country Churchyard''?

''Elegy Written in a Country Churchyard'' is the British writer Thomas Gray's most famous poem, first published in 1751. 
-The poem's speaker calmly mulls over death while standing in a rural graveyard in the evening.
- He wrote two Pindaric odes:
-The Progress of Poesy
-The Bard was published in 1757.

Source: An ABC OF English Literature - Dr. M. Mofizar Rahman