Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_251272_4 (year INTEGER, location VARCHAR)
### Question:
What is the first year where the assassination attempt was at Martyrs' Mausoleum, Rangoon, Burma?
### Answer:
SELECT MIN(year) FROM table_251272_4 WHERE location = "Martyrs' Mausoleum, Rangoon, Burma"