Yes, you can definitely group together rows in Excel to keep them intact while sorting. Here's how you can do it:

1. Select the rows that you want to group together by clicking and dragging your mouse over the row numbers on the left-hand side of the worksheet.
2. Right-click on one of the selected row numbers and choose "Group" from the drop-down menu. This will group the selected rows together.
3. You will see a small minus sign (-) appear next to the row numbers that are now grouped together. You can click on this minus sign to collapse the group and hide the rows, or click on the plus sign (+) to expand the group and show the rows.
4. Now, when you sort your data chronologically, the grouped rows will stay together and maintain their order within the group.
5. To ungroup the rows, simply select the grouped rows and right-click again, then choose "Ungroup" from the drop-down menu.

I hope this helps you consolidate and sort your data quickly and efficiently!