+               //TODO: insert countries from https://raw.githubusercontent.com/raramuridesign/mysql-country-list/master/country-lists/mysql-country-list-detailed-info.sql
+               #CREATE TABLE `countries` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `code` varchar(2) NOT NULL, `alpha` varchar(3) NOT NULL, `title` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL, `created` datetime NOT NULL, `updated` datetime NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `code` (`code`), UNIQUE KEY `alpha` (`alpha`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+               #insert into countries (code, alpha, title, created, updated) select countryCode, isoAlpha3, countryName, NOW(), NOW() FROM apps_countries_detailed ORDER BY countryCode ASC, isoAlpha3 ASC;
+
+               //Dance tree
+               $danceTree = array(
+                       'Argentine Tango' => [
+                          'Milonga', 'Class and milonga', 'Public class', 'Private class'
+                       ]
+               );
+
+               //Create titles
+               $dances = array();
+               foreach($danceTree as $danceTitle => $danceData) {
+                       foreach($danceData as $danceType) {
+                               $dance = new Dance($danceTitle, $danceType);
+                               $dance->setCreated(new \DateTime('now'));
+                               $dance->setUpdated(new \DateTime('now'));
+                               $manager->persist($dance);
+                               unset($dance);
+                       }
+               }
+