public function has_history() {
		static $has_history = null;

		if ( null === $has_history ) {
			$args = array(
				'fields' => 'ids',
				'posts_per_page' => 1,
			);

			$history = $this->query( $args );
			$has_history = ! empty( $history->posts );
		}

		return $has_history;
	}