diff --git a/src/Shared/MorningstarSearchParams.ts b/src/Shared/MorningstarSearchParams.ts
index 86c3894..3c53369 100644
--- a/src/Shared/MorningstarSearchParams.ts
+++ b/src/Shared/MorningstarSearchParams.ts
@@ -44,33 +44,33 @@ export class MorningstarSearchParams extends URLSearchParams {
 
 
     /**
-     * Sets `id` and `idType` based on given security options.
+     * Sets the parameter with the given date.
      *
-     * @param options
-     * Security options to set.
+     * @param name
+     * Parameter name to set.
+     *
+     * @param date
+     * JavaScript timestamp or date string.
      *
      * @return
      * The modified search parameters as reference.
      */
-    public setSecurityOptions(
-        options: Array<MorningstarSecurityOptions>
+    public setDate(
+        name: ('endDate'|'startDate'),
+        date: (number|string)
     ): MorningstarSearchParams {
-        let id: string = this.get('id') || '';
-        let idType: string = this.get('idType') || '';
-
-        options = (options instanceof Array ? options : [options]);
-
-        for (const security of options) {
-            id = (id ? `${id}|${security.id}` : id);
-            idType = (idType ? `${idType}|${security.idType}` : idType);
-        }
+        const dateTime = (
+            typeof date === 'number' ?
+                new Date(date) :
+                new Date(Date.parse(date))
+        );
 
-        this.set('id', id);
-        this.set('idType', idType);
+        this.set(name, dateTime.toISOString().substring(0, 10));
 
         return this;
     }
 
+
     /**
      * Sets `languageId` based on given localization options.
      *
@@ -84,13 +84,40 @@ export class MorningstarSearchParams extends URLSearchParams {
         options: LocalizationOptions
     ): MorningstarSearchParams {
 
-        const {
-            country,
-            language
-        } = options;
+        this.set(
+            'languageId', (
+                options.language.toLowerCase() +
+                '-' +
+                options.country.toUpperCase()
+            )
+        );
 
-        const languageCultureCode = `${language.toLowerCase()}-${country.toUpperCase()}`;
-        this.set('languageId', languageCultureCode);
+        return this;
+    }
+
+
+    /**
+     * Sets `id` and `idType` based on given security options.
+     *
+     * @param options
+     * Security options to set.
+     *
+     * @return
+     * The modified search parameters as reference.
+     */
+    public setSecurityOptions(
+        options: Array<MorningstarSecurityOptions>
+    ): MorningstarSearchParams {
+        let id: string = this.get('id') || '';
+        let idType: string = this.get('idType') || '';
+
+        for (const security of options) {
+            id = (id ? `${id}|${security.id}` : security.id);
+            idType = (idType ? `${idType}|${security.idType}` : security.idType);
+        }
+
+        this.set('id', id);
+        this.set('idType', idType);
 
         return this;
     }
diff --git a/src/Shared/MorningstarURL.ts b/src/Shared/MorningstarURL.ts
index 940cb72..0a58e0c 100644
--- a/src/Shared/MorningstarURL.ts
+++ b/src/Shared/MorningstarURL.ts
@@ -53,7 +53,7 @@ export class MorningstarURL extends URL {
 
         super(superURL);
 
-        this.searchParams = new MorningstarSearchParams(superURL.searchParams);
+        this._searchParams = new MorningstarSearchParams(superURL.searchParams);
     }
 
 
@@ -64,7 +64,12 @@ export class MorningstarURL extends URL {
      * */
 
 
-    public override searchParams: MorningstarSearchParams;
+    public _searchParams: MorningstarSearchParams;
+
+
+    public override get searchParams(): MorningstarSearchParams {
+        return this._searchParams;
+    }
 
 
 }
diff --git a/src/Shared/index.ts b/src/Shared/index.ts
index 2a75ba8..66a2f13 100644
--- a/src/Shared/index.ts
+++ b/src/Shared/index.ts
@@ -23,7 +23,9 @@
 
 
 import MorningstarAPI from './MorningstarAPI';
-import MorningstarOAuth2 from './MorningstarAccess';
+import MorningstarError from './MorningstarError';
+import MorningstarAccess from './MorningstarAccess';
+import MorningstarRegion from './MorningstarRegion';
 
 
 /* *
@@ -48,5 +50,7 @@ export * from './MorningstarOptions';
 
 export default {
     MorningstarAPI,
-    MorningstarOAuth2
+    MorningstarError,
+    MorningstarAccess,
+    MorningstarRegion
 };