Other than to make the bricks "disappear" or become less obvious, burying them serves no purpose at all.

It probably was just covered up. If it's an older property, possibly a midden.

There are a lot of folk beliefs about burying odds and ends in the yard, probably mostly just because people noticed middens (holes to toss trash in) would be good gardens later. Also over old latrines (where they would also throw trash).

And the good garden growth was almost entirely because of food and, ahem, other waste that was a good fertilizer and soil mendment. And the bricks and other stuff was either incidental or possibly improved drainage. But mostly because it was a compost pit or latrine.

Of course some cultures were more intentional about the soil aspect.

But I've found whole areas with bottles and stuff buried, and heard older gens say it helped the soil. All this before plastic waste of course.

They might not have been buried on purpose, just neglected and covered over time by fallen leaves, etc. that became soil.

You don't mention how old the property is...?

I just found that a large pink granite stone had sunken out of sight in my garden. I tried to plant something and hit it. About five years ago, it was above ground.

I have been digging in the garden and I find all sorts of weird stuff. Toy soilders, weird plastic toys, plastic garbage like wrappers, beer cans, glass... I guess two homeowners ago they had a daycare here which explains all the toys. As far as the garbage I'm assuming it blew in on the wind but who

The old timers, especially farmers would burn what they could and bury the remainder. Not everywhere had garbage service.

Bricks are building material. Garbage companies don't take building material so they could of just buried them.

And of course there's the simple "Got a hole I need to fill, what's laying about that I don't need, bung it in " answer.

My grandparents bought a home on a triple wide lot and apparently had the yard excavated and then brought in enough rich black farmers top soil to cover it two feet deep. But under the top soil was a layer of bricks for drainage. I would guess that stone or sand would work better; but they has no drainage problems.

I’ve found hunks of asphalt in our garden beds, probably buried there when the cement driveway was put in. I know there is still one big hunk but it’s just too much for me to uncover and lift out.

A neighbor found out that their grassy back lawn concealed a granite cobble terrace- years of rotting leaves had buried it and the grass took over. They thought it was an anomaly at first when they tried to plant they kept finding granite blocks, they eventually dug them all out and re-laid them at the new higher level.

Bottles certainly don't improve plant growth but people did throw a lot of them in outhouse pits. I'm pretty sure that at least sometimes it was because Grampa or whoever was secretly having a nip and didn't want anyone to see the bottle. Outhouse pits are a great place to dig for bottles. It's a whole hobby-business for some people.

When we bought our house in the city, moving from our country house, we were excited to see that there was a raised bed for veges!

Fell in love with the house and started planning a much smaller garden (went from 7 4x8 beds to one!)

We found out the previous owners dug up the neighbor's french drain, leading to flooding and in a lawsuit had to replace the drain and used the new "raised bed" for rubble!

We ended up having to pay someone to empty the bed and refill it with real soil!

We found all sorts of stuff in there!

@John D Zn6a PIT Pa - I wonder if those bricks were a type of weeping tile? I seem to recall they looked a t like bricks. At least older style did. A bit overkill perhaps for a yard but presumably made sense in local conditions and cost.

armoured - I'd guess they wouldn't work. If you have bricks and soil I'd think the soil would drain better than brick. Perhaps there was a little air in amongst the brick? Maybe?

I was referring to tile drainage, which would be done with plastic piping now; basically similar to French drains for agriculture. They used to be made with fired clay but a specific shape. I recall when I was a kid being shown some stuff dug up from an old field and being told it was tile drains; to my young eyes looked like pieces of old brick.

But I'm only guessing, probably doesn't fit with what you're describing or the timeframe, but could have also been a version or an attempt at this.

So Im 10 and I found a brick poking out from underneath my swing set. I dug it up and found that there were loads more bricks. Underneath I found: some bits if a cardi, a few teeth, some shards of pottery and some patterned fabric. What does this mean I'm scared?

I put some fairly large rocks/boulders in our foundation planting beds for visual interest, and pounded a few bricks into the soil underneath the boulder footprints to serve as a solid base so the boulders would not sink into the soil over time. So there's that for a purpose.

After we moved into the new place, I was digging out an area for a vegetable patch and found a bunch of "Dixie Brick", large heavy bricks apparently left over from house construction a hundred years ago. They came in handy for edging the garden.

That's cool!