diff --git a/acros/migrations/0051_alter_historicalacronym_options_and_more.py b/acros/migrations/0051_alter_historicalacronym_options_and_more.py
new file mode 100644
index 0000000..012e1bf
--- /dev/null
+++ b/acros/migrations/0051_alter_historicalacronym_options_and_more.py
@@ -0,0 +1,58 @@
+# Generated by Django 4.0.5 on 2022-06-05 19:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('acros', '0050_auto_20210308_1855'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='historicalacronym',
+            options={'get_latest_by': ('history_date', 'history_id'), 'ordering': ('-history_date', '-history_id'), 'verbose_name': 'historical acronym', 'verbose_name_plural': 'historical acronyms'},
+        ),
+        migrations.AlterModelOptions(
+            name='historicalpaperreference',
+            options={'get_latest_by': ('history_date', 'history_id'), 'ordering': ('-history_date', '-history_id'), 'verbose_name': 'historical paper reference', 'verbose_name_plural': 'historical paper references'},
+        ),
+        migrations.AlterModelOptions(
+            name='historicaltag',
+            options={'get_latest_by': ('history_date', 'history_id'), 'ordering': ('-history_date', '-history_id'), 'verbose_name': 'historical tag', 'verbose_name_plural': 'historical tags'},
+        ),
+        migrations.AlterModelOptions(
+            name='historicalweblink',
+            options={'get_latest_by': ('history_date', 'history_id'), 'ordering': ('-history_date', '-history_id'), 'verbose_name': 'historical weblink', 'verbose_name_plural': 'historical weblinks'},
+        ),
+        migrations.AlterModelOptions(
+            name='historicalwikipedialink',
+            options={'get_latest_by': ('history_date', 'history_id'), 'ordering': ('-history_date', '-history_id'), 'verbose_name': 'historical wikipedia link', 'verbose_name_plural': 'historical wikipedia links'},
+        ),
+        migrations.AlterField(
+            model_name='historicalacronym',
+            name='history_date',
+            field=models.DateTimeField(db_index=True),
+        ),
+        migrations.AlterField(
+            model_name='historicalpaperreference',
+            name='history_date',
+            field=models.DateTimeField(db_index=True),
+        ),
+        migrations.AlterField(
+            model_name='historicaltag',
+            name='history_date',
+            field=models.DateTimeField(db_index=True),
+        ),
+        migrations.AlterField(
+            model_name='historicalweblink',
+            name='history_date',
+            field=models.DateTimeField(db_index=True),
+        ),
+        migrations.AlterField(
+            model_name='historicalwikipedialink',
+            name='history_date',
+            field=models.DateTimeField(db_index=True),
+        ),
+    ]