Write SQL query to solve given problem: Please name the coin that ranked first among the coins traded on April 29, 2013.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.name FROM coins AS T1 INNER JOIN historical AS T2 ON T1.id = T2.coin_id WHERE T2.date = '2013-04-29' AND T2.cmc_rank = 1