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_1057316_1 (build_date VARCHAR, serial_number VARCHAR)
### Question:
When was the train 2053 built?
### Answer:
SELECT build_date FROM table_1057316_1 WHERE serial_number = "2053"