What year in the 19th century was a square number?

In the 19th century, the square numbers include 1 (1²), 4 (2²), 9 (3²), 16 (4²), 25 (5²), 36 (6²), 49 (7²), 64 (8²), 81 (9²), 100 (10²), 121 (11²), 144 (12²), 169 (13²), 196 (14²), 225 (15²), 256 (16²), 289 (17²), 324 (18²), 361 (19²), 400 (20²), 441 (21²), 484 (22²), 529 (23²), 576 (24²), 625 (25²), 676 (26²), 729 (27²), 784 (28²), 841 (29²), 900 (30²), 961 (31²), and 1024 (32²). Notably, the year 1849 is a square number (43²).