[![$lessons = Lesson::where('archive','0')->get();
  $events = [];
  foreach ($lessons as $lesson) {
  $events[] = Calendar::event(
              $lesson->class.' '.$lesson->theme, //event title
              false, //full day event?
              $lesson->date_start, //start time,
              $lesson->date_end, //end time,
              $lesson->id,
          );
      }
      $lessons = Calendar::addEvents($events)
      ->setId ('lessons')//установить id календарю
      ->setOptions([ //set fullcalendar options
        'firstDay'          => 1,
        'locale'            => 'ru',
        'defaultView'       => 'month',
        'slotLabelFormat'   => 'HH:mm:ss',
        'timeFormat'        => 'HH:mm'
      ]);

  $lessons_archive = Lesson::where('archive','1')->get();
  $events_archive = [];
  foreach ($lessons_archive as $lesson_archive) {
    $events_archive[] = Calendar::event(
                $lesson_archive->class.' '.$lesson_archive->theme, //event title
                false, //full day event?
                $lesson_archive->date_start, //start time,
                $lesson_archive->date_end, //end time,
                $lesson_archive->id,
            );
        }

        $lessons_archive = Calendar::addEvents($events_archive)
        ->setId ('lessons-archive')
        ->setOptions([ //set fullcalendar options
          'firstDay'         => 1,
          'locale'           => 'ru',
          'defaultView'      => 'month',
          'slotLabelFormat'  => 'HH:mm:ss',
          'timeFormat'       => 'HH:mm'
        ]);][1]][1]