// Programmatically create and translate taxonomy terms.

use Drupal\taxonomy\Entity\Term;

$term = Term::create([
  'vid' => 'sport_activity',
  'langcode' => 'en',
  'name' => 'My tag',
  'description' => [
    'value' => '<p>My description.</p>',
    'format' => 'full_html',
  ],
  'weight' => -1
  'parent' => array (0);
]);
$term->save();
\Drupal::service('path.alias_storage')->save("taxonomy/term/" . $term->id(), "tags/my-tag", "en");

$term_es = $term->getTranslation('es');
$term_es->name = 'Mi etiqueta';
$term_es->description->value = '<p>Mi descripción.</p>';
$term_es->description->format = 'full_html';
$term_es->save();
\Drupal::service('path.alias_storage')->save("taxonomy/term/" . $term->id(), "etiquetas/mi-etiqueta", "es");

unset($term);
unset($term_es);